Middle East: Man finds himself getting sexually aroused just by looking at women's normal hair while they're going about their everyday business. Decides that's immoral, blames it on the women and decrees they must all fully cover their heads in hijab from now on.
West: Woman finds herself getting sexually aroused just by looking at men sitting while going about their everyday business. Decides that's immoral, blames it on the men and decrees they must all squish their legs together from now on.
The anti-manspreading chair is the Hijab for men. Take that, bigots.
Meanwhile the obvious solution escapes both sides : It's part of life to get randomly sexually aroused. Growing up means learning how to control it, being responsible and not blaming your problems on others.
Inspired from:
Man Tries Sitting In Anti-Manspreading Chair, Immediately Crushes His Balls -Timcast, 2019-07-26
Addendum :
Year 2120 : Men squishing their legs together is a religious thing; it's a symbol of their devotion to God; there's nothing oppressive about it, you hateful racist bigot!
Men not squishing their legs together : well, they're asking for it! #sarcasm