We already have those things:
This just goes to show how powerful feminist ideas are in our society...they've even brainwashed freepers into thinking that men are inherent losers (ie: any organization which has an all-male membership is perverse, criminal, or for losers). We have come to see ourselves the way they preach that we are.
Go back and look at Victorian England. Most of the social life of men in that culture was in men-only organizations (clubs, charitable associations, etc). I was in a fraternity for four years in college and we had a great time...and it was more than just partying.
Straight men are perfectly capable of having oraganizations for themselves that are not dysfunctional.
One of the reasons why I believe that women will lose the gender war that they started is because of one simple fact: women need men more than men need women. The only thing that men really NEED from women is sex. The vast majority of women, on the other hand, have a need not only for sex but for children. And they can't raise children as well by themselves as they can with a man (which is why one of the fundamental problems of all cultures has been how to induce men into giving up their independent lifestyle and take responsibility for a woman and children.)
The average married guy probably spends 75% if his income on his wife and kids. I'd be stinking rich if I was earning my own salary without wifey and the rugrats rifling through my bank account. So why bother, if its just going to give you major problems later on? Why not keep 100% for yourself and just not have a wifey (esp if the gals in your society are easy and can provide easy access to sexual relations)
That is a question that will be running through the minds of more and more straight young men as the feminist revolution rolls onward.