I think actually, multiple things can be true at once.
*Tight, skimpy clothing is on the whole much more practical for exercising. It's entirely appropriate for the gym.
*Women should be able to wear whatever the fuck they want, as should men, providing no one is breaching common decency or hygiene standards eg/exercising with no pants on.
*Not all tight, skimpy wear is actually proper exercise gear - some of it is fashion wear masquerading as gym wear. These types of clothing don't provide proper support, don't wick away sweat, and are deliberately sexual eg/very low cut on the chest so cleavage pops out when bending over.
*The gym isn't always a place to exercise. Some people just go to ponce around in tight clothing and show off as much of their body as possible while trying to get asked out.
Because I'm old as fuck, I've been going to the gym for more than 30 years. People have always worn tight clothing, in varying degrees. Anyone else remember the Let's Get Physical music video? Or Call On Me? 😂
I don't care what people wear but I do feel irritated by people strutting around, taking up space preening, with clearly no interest in exercising. I would say there's been a real change and there are now a much more significant number of people in this category whereas in the past people went to the gym to genuinely exercise, and that's it.
This applies to men as much as women, possibly even more of them tbh because of the skimpy gym clothing that is the current trend. That's not the fault of the women who are there to genuinely exercise.