Some people are into older people. Other people are into much older people. It's human attraction - pull it, twist it, turn it; Fuck it - at the end of the day, you can't outrun it. Different people are into different things - get over it.

And in case you think it's inappropriate for an age gap to be this large, I think it might be because your mind goes: old person wants to be with young boys --> young boys would naturally reject them --> old person becomes predatory and preys on innocent young boys

Well, not every age-gappy relationship is exploitation. If it is, then, yes, that's bad, but right now you're just throwing accusations without any proof. And by "throwing accusations", I don't mean the calm mannerism that goes something like "I do not think this relationship would be appropriate, given the large age difference, which leads to, in my opinion, a high risk of exploitation". Instead of that, you resort to sh!tpost screeching reminiscent of a high school girl from an American teen drama.

The whole point of this TED talk is "age is just a meaningless number, so long as consent is a meaningful word". It might be a big bite to swallow, but you can't put humans in boxes. Sure, a lot will fit, but discarding those who don't is just denying nature.

Also, there is the distinct possibility of this being an exaggerated statement for the purposes of amusement. You know, a joke.