Yes, it makes sense that there is nothing wrong with a thing that benefits women only. There are plenty of those things. e.g. rape crisis centers. My point is that feminism is not one of those things that benefit women only.
The point I am trying to make is that when you are making an argument it is like playing chess. When you make a move, think about how your opponent can use your move against you.
Additionally, focus on the outcome you want, not the appearance of sounding fierce. (Though for some people virtue signally by sounding fierce is the most important outcome). To get your outcome usually means getting people to adopt your point of view. Persuasive techniques are the best method for that. Put yourself in your opponent's shoes and reread what you wrote. Then try to make his counterargument before you hit publish.