Just look at fitness influencers, atheletes, male and female who have peak human bodies as examples, ppl like showing off their bodies when they are physically fit and look good.
I never got the whole oversexualized angle when it comed to most comic book appearences, they look very tame compared to rave or even gym outfits meant for mobility, do superheroes not need mobility?
Hmm weird thing as they can freely choose from a wide variety of clothing