I also see your point. But with social media nowadays, people follow trends more.I see your point, however in the 90s, Pamela Anderson was in, and 'omg Becky, look at her butt' was a thing. Lets not forget that.
Now they're out here wobbling the thighs in the front which black women have been doing since forever and was looked at as disgusting. But here we are today....
Also, what's considered a "big ass" is different now than in the '90s (even for Black women).