Actually, I know it's probably impossible to convince you. That's because your point of view is based on emotional prejudice. You cannot use logic to convince someone to FEEL differently about something. Much in the same way you cannot convince a 45 year old man to not FEEL attracted to a hot 20 year old girl.

Personally, I don't believe for a second that you have these same feelings towards a woman who dates a much younger man. Of course you will say that you do, because otherwise, your argument will lose all credibility. But I imagine that if you heard about a 45 year old woman hooking up with a 20 year old guy, it would not fill you with the same anger that you apparently feel when you hear about a man with a younger women. And you are not alone in this. Most people who condemn men for dating younger women do not have any problem with the reverse scenario. When they condemn women for dating younger men, it is half-assed, like in politics when a person condemns an extremist from their own ideology. It is just a ritual they perform to keep their credibility. There is no real outrage like there is when they are condemning something they actually oppose.