I think men who are not feminists should be jailed
That seems extreme. What if one of your friends wasn't a feminist?
I would die from embarrassment if one of my friends were a non-feminist
People shouldn't go to jail for what they do or don't believe. What if someone jailed you for not believing in something?
If it was a good belief, like feminism, then I make myself believe in it.
Even if feminism is a good thing, people shouldn't go to prison or be discriminated against just because they don't like it. I think you should try to put yourself in their shoes, and see why they believe what they do.