Why is it so important for certain demographics to eliminate male only spaces?

There is a program in my home city, Basically a group of guys do shop related stuff, Metal, and wood working. Its been male only for a long time, Its meant to combat the male loneliness issues, and promote male bonding. I can tell you that there are more than 10 people that this program has prevented from committing suicide. Recently a um Karen, for lack of better terms has basically told us that she will have our funding pulled if we dont agree to allow women. Funding mind you, that is actually not hers to pull, Its provided by the members. We repeatedly told her that its actually open to all people, just very few women want to join a club where we do metal working and wood working. She tells us that that is no excuse, that she will file a civil rights complaint if we dont actively recruit women. So now we are being forced to recruit women, or well we won't lose funding but we will lose access to the place we use to have our group.

Why do certain people do this? I get being inclusive but this is ridiculous. I am tempted to rent out a different place and tell her to F Off. Sorry women get women's only clubs, women's only gyms and so on. Why can't men have men only clubs? Whys so threatening about spending time with a bunch of guys working on metal and wood projects, and teaching the next generation valuable skills as well (30% of the members are boys that want to learn it as a trade)

Why is it so important for certain demographics to eliminate male only spaces?
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