Yes, games generally are sexist. (note that generally =! all) Above all they're often dumb. Not to mention gamers. I didn't watch the video because I hate videos.
When we say "Gamers" we do realise that 52% of all "Gamers" are women right? The trope that all gamers are 15 year old teenage white boys playing Carl on Duty is a falsification. And frankly, all games designed for that demographic
are entirely sexist. Take one look at a game like LoL and it irritates the hell out of me. Pretty distasteful female proportions, and of course that ridiculous armor.
Most games are guilty of it, but not all. Generally the ones designed for other demographics are far more conservative.
All in all I agree with most women on this massive issue. It's something that's bugged me for years, and I don't find it necessary to oversexualize females in games. It takes away from the game and adds nothing for me. I'd rather have realistic women and realistic armor in all fantasy games, it certainly wouldn't upset me. Not to mention it would be nice for a female character in any game to actually have some form of personality. We need more Brienne of Tarth's frankly.
Most of the reason this issue has become so sensitive is because a bunch of keyboard warriors from 4chan decided to make empty angsty edgy teenage boy threats.
I don't care about terrorism, but that's not going to stop them from blowing people up.
That's the entire point. Saying you don't care does not solve the issue, because
other people care. Just because one thing doesn't affect you doesn't mean it's fine for everybody else. People aren't asking for their opinions to be oppressed onto you, merely for developers to take their opinions into account instead of blindly oversexualising games and offending most of the female gamers. I imagine if you were female you'd feel quite differently, but you're not, so it's hard for you to understand.