And yet, it looks like women nowadays cheat more than men.

Googling "how many people cheat", this is the first result: https://techreport.com/statistics/lifestyle/cheating-statistics/

This page reports at least 71% of men and 82% of women admitting cheating.

So maybe, your painting men as worse and less reliable, is not exactly adherent to reality.

I think people can either be great or horrible, and it has nothing to do with gender: but everything to do with character.