Men and women think differently.
From you own personal experience if somebody gets up and says we need someone to do lector, women would normally be more forward about volunteering. Most guys are fine with doing it, but if someone else wants to do it its fine by them. But if you go up to him and ask him individually would you be willing to do this they’ll likely say yes.
Thats the way most group of men work, be it ushers or schola cantorum or whatnot. One guy inviting another individually. A priest standing up at the pulpit saying, we need more vocations has much less impact than a priest looking into the eye of a parishoner telling him, “Have you (singular) ever considered the priesthood?”
For the most part people don’t like to stand out and be in aquward situations. If these chiors are composed of all women a novice singer isn’t going to go in as the only male voice. If the chior is composed of enough men the other guys can say, hey just listen to us, follow our lead, and pick things up. Seeing as how every cantor is a novice in the chior at some point, if you don’t have men in the chior to train other men you won’t have men in the chior or men cantors.
Everyones a pope so when you see something you know you dont like you say so, but when have they been invited personally, would you like to do it. (Not a if its not good enough for you then you’re taking my work for granted and nothing I do seems good enough, you do it if you know so much.) Rather, hey Joe, you might be right, would you be interested in perhaps forming a mens chior with me? Hey, if you think Latin is more masculine do you think we should see what support is there in the parish for a mass in Latin?
The comments about altar boys is this. Call it early age sexism or whatever you wish, perhaps its innate or perhaps its cultural, but the way things are now young boys do not like to do “girly” things. It is why most boys do not take ballet, rather football, karate or whatever. Now if they only see girls as altar servers they think it must be girly, so I would not want to do that.
For the most part the men that complain are the ones who try to do something. The men who don’t complain are the ones who don’t go to chuch or don’t have a problem with the feminity.
Now I am rather young and havn’t had much experience with life or children, so all of these ideas may actually be quite off, but it is my perspective of things so far, if someone has something they would like to correct please do so.