As a straight woman I find all this attraction to boobs and butts to simply be another fetish.

It's just a fetish that's acceptable and even expected by society. How come you hardly ever hear about a woman being so fixated on a man's body part? Sure, we all appreciate when something is beautiful, like women will think "nice hands/beard/shoulders" but we don't fap because of them if that makes sense? Men will see a bit of cleavage and keep thinking about it all day, how is it any different than a foot fetish?