I bought into feminism for quite a long time. For me the problem with it is how many feminists buy into a self fulfilling prophecy.
The main chunk of feminist theory hinges on a marxist theory known as the dialectic. This is the problem with almost all leftist movements, what is does is reduce society and all living in it to factions and removes all individuals and replaces them with classes, races, oppressed nations, imperialist nations and so forth.
So the feminist line will never deal with real world examples, because for their analytic method to be valid women have to be the oppressed and to deny that on any level is to upset their hypothesis. For example admitting women are favoured int he courts is to downplay the oppression of women in society, so if you argue that position you are a misogynist, if not wilfully then objectively.
The dialectic is what leftist movements barring some anti authoritarian ones have bought into, it is basically a way to analyse society. Most people think Karl Marx was a communist, he was not, he was first and foremost a dialectical materialist. He was merely communist because his analytic tool of dialectics believed communism to be the likely outcome of class society.
Thesis - Anti thesis - Synthesis
Class society - class war - egalitarian classless society.
Now this might be right or wrong, you don’t have to agree with that to be a dm, for example Christopher Hitchens (famously anti feminist and pro war and hated by the left) said in an interview on the BBC just before his death he was still a DM.
The problem is like all philosophy it is all just ideas of how to analyse things, not a concrete proof. And rather than examine if Marx drew the right conclusions the left (I am talking about the radical anti capitalist left not democrats) they rather uphold foregone conclusions and argue anyone showing evidence of things not being that way as merely upholding the patriarchy. Or merely supporting the oppression of the bourgeoisie, rather than asking is the marixst theory of value right, because to them there can be no argument.
To address the other side I think a lot of men in society are very sexist and i think sexism in society by men affects us just as much as it does women, as another poster mentioned if we are not slaying gash we are losers, if we are not rich we are not real men and providers. Sexism is a double edged sword but i think historically men have been very oppressive and repressive to women.
This however is largely amongst my generation, not the case.
And while I think feminists and leftists have it wrong after being a self identified one for many years I also think most people who identify to the right have it wrong too. The problem is we all have preconceived ideas and we let them get in the way of a real discussion. I have been guilty of this before and I try especially hard not to do so now.
For example for years I would read Marx and Lenin and Bakunin and Paine and Jackson and just like very other ash sole I developed an idiotic bias, never reading any differing views, never trying to expand my knowledge past what I already believed.
I think starting to read other economic theories and other accounts of history and to weigh differing value theories and different ideas on what constitutes freedom and justice has matured me more than anything over the last decade has.