2011 answer

Men do not find feminism a turn-off, and any man that does is a scarily narcicisstic one and a control freak who needs to sort his life out and fix up. If a man feels threatened by the idea of women being equal to him, he needs a long think about where his morale and self worth comes from. Men typically want there to be equality in this world, so they're happy to support the women feminists for being feminists.

The way men see it: It's not like feminism actually takes power away from men, so why should they hate it? It's not like discrimination laws stopped white people from getting jobs by helping black people, so to them, what's the problem with feminism? There is none.

However, seeing as you say some, then there are some men who believe that feminism is not about achieving equality for women, and that it's instead about making women superior to men. As men don't usually encounter many feminists, one feminist who does something different or not understood; can be enough to install a prejudice in his mind for him to decide not to like them. By some I mean a few.

2019 answer

Feminism has a really bad reputation for being about hating men or wanting to be superior to men, which lots of men and women believe to be true about feminism. There are men who will refuse to date a feminist, or men who are against feminism who will date a feminist because they can be friends with people who have opposing views, and understand that two people don't have to agree on everything to be friends. A common ground can be in somewhere else.