Life is much more complicated than that, it's just society that decides what is normal or not, and dont fool yourself, politic is behind all this, it's always politic , they didnt change the law to be nice and tolerant, gays are just a tool for politicians, like feminist were few decades ago

There is no normality by the law of the nature, there are just things allowed and forbidden by the law and the society

No ? strong survive pass on their geans the weak die.  Id say that one hell of a law of nature.

Not always, human laws say the weak one can make a group to become strong together

For girls maybe, not sure what country you live in where 2 guys holding hands is normal. 

Sadly Russia is stuck in the past in terms of modern values. They're very conservative as a country, and love the image of the strong man/leader. Valdimir Putin stylizes himself as the epitome of masculine strengh and while it includes silly bare-chested bear hunting promotional shots, it also includes heterosexuality very firmly. We all know about the discriminatroy laws that were passed just prior to the Sochi olympic games. And while no doubt countless of people are suffering, the general consensus in the country seems to be in favor of these policies and of the discrimination against 'weak' homosexuals.
It's not just homophobia either. There are also massive problems with racism. We have friends that decided to leave country after their children were denied to enrol in school, on the grounds of their father being from afghanistan. The mother is russian and the kids were born there, but that didn't matter, the father was brown after all.
It's a sad situation that is not helped by low living standarts and suffering economy in many places. Add to that the decades of having to conform to a rigorous regime that punished any sort of deviation in pursuit of the greater goal and encuraged spying and telling on each other, the fact that even today freedom of press is dodgy at best and that corruption runs throughout the system.
You have a perfect breeding ground for intolerance, ignorance and racism. It's a vicious circle.

What if that gay dude it's just a gay clone of you, that it's exactly the same as you with the exception of his/her sexuality? :P

Well, Russia hates abnormal-ness, fuck, that sucks, you can freely be a dick to minorities and get away with because no one cares/no one is brave enough to stand for them, still stuck in the middle age, I see, except they weren't executed on the spot, so that's an improvement. Hopefully something happens there that incitivices acceptance and tolerance, whick are some of our best qualities as human beings.

there is no (big) catholic curch in russia
it's the russian orthodox one

Wow, how sad. From the Russians that I've met, I feel like they really aren't nice people.
Oh well, at least those guys could walk around legally in Russia. In a country like Saudi or Iran, they would have been put in jail.

Kinda bad to suggest that the video is cherry picking the worst of a walk to highlight it... I mean I could walk around for eternity in my town and not have to consider abuse like this so even if it is highlighting the worst abuse those guys gets it still shouldn't happen.

Feel pretty sickened for all the people who walk around and can't show love towards their partners in public because of this or for those who dare to show love and don't happen to have a camera crew near them to stop abuse turning violent on the couple.