Tooba : Certain pejorative terms like "Slut" or "wh*re" are traditionally used by men to insult a woman.  They give an idea of woman who is liberal with s*xual favours. To a modest women it may appear that the "cause" is about shedding clothes and advertising s*xuality, which in no way blends with their idea of being a female - agreed (keeping cultural aspect in mind - there are tribal areas in India which are like nudist villages - again different society and culture). Probably the word "Slut" gives that impression. (Hence the debate about the usage of this term in India.)

However the very idea that all men are  so weak that they are ready to pounce and rape every women who is baring her skin more than the accepted norm is ridiculous and probably insulting to men. (May be men will start their own protest parade).