Lots of decent men exist. Not perfect men, just essentially decent.
Men can make sexist comments without thinking. It's not 'right', but it's not always coming from a deliberately vindictive, or sexist place, just out of ignorance, or carelessness. That's the humanity in us all that says and does things we shouldn't.
Stopping to think about our thoughts and actions is a step forward. Changing them is better still.
Sexism is all around us. From 'women can't drive' to 'men drive too fast'. We often think nothing of it because we trivialise it. It almost becomes normalised.
But it's actually not too many steps from 'women can't drive' to 'because they aren't as capable as men', and a few steps more to 'because ultimately men are superior, physically and mentally'. Of course, it's utter bullshit, but it really doesn't take long for impressionable idiots to think this way.
I'm not actually convinced the dislike or hatred of women is all about feeling threatened. I think plenty of it is related to boys being utterly indoctrinated with the belief they need to be 'manly' (measured in very male terms). Reducing women helps some men feel they are impressing other men, or making themselves feel superior towards someone, because they feel inferior to many other men. Ultimately, the reasons are probably quite complex.
I have many many faults, but I don't dislike women, so it's hard for me to see that perspective. I dislike some women and some men, because I don't like them as people, but that's different.
In my view, if you like the opposite sex, and you want to understand and enjoy their difference, you have to open up to them, and let them open up to you. Not always easy, but there is nothing as intimate as bearing your soul, and understanding that the worst that can happen is she might ridicule you. For her, the worst that might happen is you'll hurt her emotionally, physically, or worse - because it's really NOT a woman's world.