How come the fight club had no female members?

" Of course if it were made today they would have to (probably by law) have to allow women into the club."

First of all, I don't think 'law' means what you think it means (hint: legal system is not law, and 'legal' and 'lawful' are completely different things).

Second of all, it's not like the club was formed under the authority of some governmental entity/office, and since the whole thing is based on anarchy and not 'law-abiding' stuff, the club had nothing to do with law (or 'legal system'). Besides, it's lawful for consenting adults to do whatever they want in a private place.

So 'law' can't, couldn't, and wouldn't force them to allow women to join.

What if women don't want to join, would 'law' force token women to join?

Even if such law existed, do you REALLY think Tyler would care enough to follow that kind of law?

Fight Club has its own rules, and those are the 'law' that Tyler believes in.

It's not that women aren't 'allowed' into the club, it's just that the club (and later, clubs) automatically attract desperate men into it. Women are never as desperate, as they have multiple glass floors - men have nothing, so Fight Club becomes the only 'glass floor' for men.

It's like homeless soup kitchens allow women to use them, but yet most of the 'customers' are men anyway, because men don't have a glass floor preventing homelessness, the way women do. So if a woman becomes homeless, she is really and truly at the bottom - men fall to the bottom easily, it takes hard work to ruin your life to end up at the bottom as a woman (so many women's shelters and women's organizations exist, but not many for men).

This movie is basically a cry for help, because men don't have the safety nets women do. And women want to make their version of this.. it's like rich kids make a movie about ghetto poverty, that's filmed entirely in rich mansions, Lamborghinis and luxury yachts. It just doesn't work if you swap the genders, because women are always rescued.