I hate men who are arseholes, I don't deny it for a second, but luckily for me I don't care what they think, and besides I only ever encounter them online where I can laugh anonymously at them - never (or at least very rarely) in real life.
I have yet to come across a feminist who hates men. Some women come to feminism through a bad experience with men and so may feel somewhat disillusioned by the gender, but many are like me - surrounded by good men and keen for women who have had bad experiences to realise they can move on and either be happily single, or with a good man. Both far, far preferable to the alternative.