What percentage of openly lbgt people are there in the US? 3%? Yet when you think of most TV shows in recent memories, there are bound to at least one openly gay character. Modern Family, How I Met Your Mother, Arrow, The Walking Dead, Penny Dreadful,  How To Get Away With Murder. Gotta have at least one among the main characters.

The progressive and liberal elements of a few of netflix's shows detract from the rest of the show itself especially if it's overdone. Maybe they are just trying to be edgy. Sense 8 is a prime example of going too far. It's fine if there's a bit here or there but it's too much at times. 

You are entitled to your own opinion :^)

Depends on where you live.  In New York City?  Quite a few actually.  Might be different if you live in Oklahoma or something.  I can't really put a percentage on it, but it's definitely enough that it isn't in the least surprising that out of the people Jessica knows, one of them might be gay.  And if you know one openly gay person, you very likely know several more, because you're likely to meet their friends.

But you specifically said agenda.  What agenda is Jessica Jones trying to push?  The "gay people exist" agenda?  There is no strong message about Hogarth's sexuality being made one way or the other, and she's not even a particularly likeable character.  So again, what agenda is served simply by having a gay character?

Guy comments on one of the best acting ever given on a TV show saying Killgrave is a bad vilain, ye sure man. Its OK to dislike something but the consensus is that the show is excelent so just say you dislike it because you dont liek the tone, the pacing or whatever but it makes you look like a fool when you try to pass your disonant view as a fact. 

Next step on the "I hate everything that reviews super great and will voice my opinion as fact telling everyone how delusional they are to like something basicaly everyone likes" agenda is to say The Last of Us is overated, The Lord of the Rings is a terrible movie, Harry Potter is poorly written and Call of Duty has terrible gameplay.

I don't watch those shows, so I can't speak to them. That said, if you live in a major city. You are going to run into gay people. Unless you are in some podunk town, most gay people aren't hiding  who they are these days. I think you have a case of confirmation bias. If you are looking for something. You'll find it. I'm not sure how having three lesbian characters, none of which are portrayed in a positive light, is pushing an agenda. Usually when you push an agenda, you want the subject of that agenda to be seen in a positive light. 

Actuall what I was thinking. Mind control is just the ultimate power for evil superheroes and he could easily go for world domination. But his interests are just have fun and get everything he wants. He don't need to achieve positions of power or establish a network of people, because he has the ultimate power over everyone and can make everyone do everything. So no need for him to get world domination. Only his obsession with Jessica Jones brings him at all to do stuff that hurts a bigger amount of people, otherwise it would only be a few.

In the shows Sense 8 and Jessica Jones the gay/trans-protagonists worked pretty well for me, they didn't give the feeling of being forced. Especially Hogarth is a pretty cool and strong figure, I wish more shows had roles like her.

Reflecting what is interesting to viewers: you'll find more young beautiful women than old ugly ones in movies and shows, and more athletic men then fat weeklings. This isn't reflecting general population at all.

How I met your Mother had an openly gay character? Who? Sorry I was just genuinely curious about that one. I haven't seen the last season though, so I may have missed someone. (I'm assuming it's not some one-episode-character here)