Why is it O.K. for s to try to force everyone to accept and celebrate their lifestyle and yet..?

people who think for, for any reason at all, that uality is unnatural and morally wrong, are demonized and labeled as s, bigots, and every other name in the book? If they want to be accepted for who they are and not have people try to change the way they are then why can't they do the same for others?