Show me proof of prevention.

You are confusing cause and effect.

You are concentrating on a tiny percentage of evidence in the counter direction hugely outbalanced by the weight of evidence in the main direction.

Sexism is a huge problem for women and a tiny problem for men. So small, in fact, it statistically it does not exist.

Look at the balance of the scales not the tiny fleck on one side.

Sexism is about balance not uniformity. It is about power and opportunity. Not everything has to be equal for us to eradicate it.

As long as the problem is stacked against women we should be concentrating on sexism against women.