My issue with feminism can be distilled into my experience with how the wage gab was handled on German TV news.
There, time after time, the wage gap between women and men was decried. And I was thinking to myself 'How can this be? How is this possible'? It seemed out of this world. I did not understand.
With such questions in my head, I came across some explanations, with the gist that the wage gap was more or less a case of not being able to properly use statics. Attention! I don't want to deny the existence of merely sex-based wage discrimination, over time I learned more and I think it is happening - but the point is, those statistics cited over and over on the news were still utmost dubious if not out-right silly. At least in the way they were presented.
And what I took from this was the impression that feminism had become such a case of the political correct agenda to have, that it sorta took on a life of its own, propelled forward by a momentum which was a force in itself, a case of it is good because, hello it pretty much definition is, a case of not to be trusted.
And since then I do not perceive feminism as a mere case of fighting against undue discrimination. But as something that is foremost en vogue, popular, and then, after that, the actual case. Something which causes people to loose some perspective and due consideration of alternative points of views or interpretations.
Another example is a segment by John Oliver. There he compares a very small wage gap to a very small pile of crap one just did on ones desk. Meaning - any gap of whatever size is unacceptable.
That is IMO a case of all the things I just listed. It is not even considered that there could be a due difference, according to accepted usual job market mechanisms. It just has to be exactly equal.
Now that is just the angle which is important to me. But I am sure things like feeling threatened by women etc also play into this, on some level.
I do suspect that there is also a part of the male brain that naturally finds it more easier to accept male authority.
Also, I think that some males may simply prefer the different climate of a male-dominated business.