Leggings and sports bras are DESIGNED FOR EXERCISE. If men can't keep their eyes in their head around women dressed for the activity they're taking part in, that's on them.

Guess I'll enjoy my nice quiet gym though. Who do they think they're hurting with this boycott?

There's a women-only gym near me, I'd love to go if it weren't so dear. Demonstrative of the premium many women are willing to pay to pay work out around men. How could you have an issue with that when by definition they can't complain about men there?