Because either the woman was free to wear it or not, and then you're restricting their freedom of religion, culture and clothing, either they were forced to wear it by someone else, and then this someone else will just ban them from going out in public. It makes free women less free, and oppressed women less free and more oppressed. It's just more problems and less freedom for women, and no worries for any man. This is a crackdown on women, or we disagree on the notion of crackdown (i may use it wrong).