Depends on your definition of accepted. A non white person had the same rights and can do the same things a non white person can. We have non white people who own companies, have a high political rank and generally like NL. On the other hand there are probably plenty of people who feel opresssed and discriminated against. Like in every other Western European country, so I would say I don't know, but we come pretty close to the country who accept it the most (top 25).

Of course you won't be able to speak for everybody of your country, but for example if you were to ask mixed Japanese people if  they feel accepted and treated as Japanese in the only country they've seen and lived in they will almost unanimously agree that Japanese society does not view "hafus" as one of them.

I remember an American cornflakes commercial gettting lots of flak for having a mixed girl with her Black father and White mother. It still seems to me that most mixed people are pushed into the Black group even when they know that that person is racially ambiguous. Of course most of these examples show up when it's people of darker skin but it's a really complicated issue allround and varies by the state you live in.

I'm sorry for your Japanese grandmother mustve been hard for her.

Yes, I know that most of Latin America has a majority mixed population and represent a mixed culture which is why they're so accepting of interracial marriages and of mixed people. Very good on them.

No, executed on sight.

I'm not mixed myself, so I might not be the best person to comment, but I've grown up around tons of mixed people and it's really common around here.

My best friend growing up was half black / half white and we talked about discrimination and racism growing up, but it was all in concept, it was nothing that ever touched us.
I don't think he ever faced any kind of discrimination because of it back then.
Another friend I grew up with is half-turkish / half-german (not exactly mixed-race obv.), people mostly seem to think she's french and like her slightly 'exotic' look. Again, i don't think she's ever faced any sort of trouble because of it.

Now, I'm not so sure though, germany used to be devided and there's a big problem with racism and xenophobia, predominently in the ex-GDR states and it is emboldening every washed-up racist that had been hiding under the surface before, even in the rest of germany.
My mom is a kindergarden teacher and they have kids with parents from ex-GDR regions that refuse to play with the black kids, or refuse to touch black dolls and call them 'disgusting'. We're talking 4-year olds here, so they are definitely getting this stuff from their parents.

It just makes me really sad that even small kids get indoctrinated with hateful stuff like that. At my moms work they do their best to contradict those statements gently (aka. asking 'why do you think it's disgusting?', making them think about it instead of just repeating what they hear at home) and do projects about multiculturalism, cultures in the world and acceptance and tolerance, trying to show them their diffrences are interesting and that they probably have more similarities than diffrences anyways.

I also heard an old man screaming obceneties at some black people walking by the other day and that was literally the first time in my entire life I've seen something like that happen here. I got angry with him and shouted back, because he was being despicable, but the fact that he even dared to do that at all seems really bad to me.

Overall I think that in my Area these kinds of incidents are thankfully still very rare, and overall acceptance is good, but the rise of nationalistic, racist and xenophobic tendicies is definitely worrying to me.

Its like this in denmark too.

its nothing about race or looks.
its about kulture & religion, and people not makeing a effort to try and fit-in the place they now are.

Yes, overall, despite the fact our new president said he educated his sons too well for them to ever date a black woman.

Not a big deal in Belgium.

 I do not know if its a big deal in Belgium but from a personal experience i noticed a lot of xenophobia growing up in this country .

A big part of my own family is that way which is very conflicting for me and as a mixed person myself i had people not opening up and talking to me or plainly being mean till they heard me speaking in their own dialect, some of them even confessed they felt relieved i was no foreigner but that never felt as a compliment for me. :p Regularly i hear people talking about the foreigners that take their jobs or take their taxmoney,steal,cant be trusted and even worse i hear people cheer when a foreigner dies in an accident because "there's plenty of them" or "Its not one of us" or "those are worth less" .

I did go to an all white shool as one of the few colored kids there, i think 2 or 3 total and i must say i had a very hard time in my early years and only when i grew and could defend myself they turned into cowards and stopped bullying but a lot of kids back then had xenophobic tendencies probably partly inherited from parents.

I do not know about total statistic but from my own biased personal view i did witness a lot of negativity towards anything that looks or acts differently.

Perfectly normal in France, you can still find racists obviously, like anywhere else, but half people ("métisse") are usual and normal.

Yeah, in Japan it's weird. Some people will find half beautiful and classy and be jealous, others will hate them. In any case, they're not considered normal, and most people will behave in a weird way with them. But Japanese society is deeply racist, and it won't change soon unfortunately. I would say that now at least, there is less stigma about marrying a foreigner, but it might depend on the parents. My girlfriend's parents are perfectly happy about me, and another of their daughters is dating a Brazilian guy. But on an other hand, other old people sometimes say to me "your girlfriend doesn't look exactly Japanese, so obviously she's not Japanese, don't lie about it", even though she maybe has origins outside of the Tokyo area (like south Japan on one side), but is entirely Japanese. If you don't look like the average local, then you're a foreigner, and even a stranger, and they can be very weird and insulting about it.

Other thing that made it a lot harder for the girls in the OP: they're half black. Japanese people are racists toward white people but still consider them beautiful (almost like a superior race for some people), but they're a lot worse about black people. Like "lower race" worse. Same thing usually with Vietnamese people or other Asian countries, Japanese treat them like garbage sometimes. I guess for them a half-white would be beautiful and classy, a half-black would be an inferior being. I even met a half Japanese/Vietnamese girl who looked very Japanese to me, but she told me she was annoyed by Japanese people regularly...

By the way, it's "haafu", with a long "a" :P (end of the "Yeah, I know some Japanese, how classy" moment)

I'm a gay white man married to a Latino man...
We live in New York City, so we don't experience much in the way of active discrimination or hostility, though every now and then we experience insensitivity that is a result of lack of exposure to different cultures; most people are willing to listen and learn though...
Recently my husband has been allowing his nephew to spend time around my family and he has family members that have a problem with that...
I have several biracial friends that are "white passing," and they have had some interesting run-ins with racism in the past, mostly from people who don't realize their talking to somebody who is half-Latino or half-Arab and making blatantly racist comments...
I knew a girl whose mother was white and her father was Arab; when she got home from school on 9/11 her mother told her to "look what [her] people did" on the news (her father was in no way affiliated with any terrorist groups and actually worked for the federal government)...