The Neverending Logical Fallacy

Look at this page.

Did you see it? The old classic answer of "There aren't many female characters because superhero books are aimed at men."

This is a Bad Argument

It's a bad argument because its a cyclical argument.
"Our product does not appeal to women."
"Can we make this product more appealing for women?"
"The product is not appealing to women, so women will not buy. Ego, there's no reason to trouble ourselves with making the product more appealing to women."

It's a bad argument because it makes foolish assumptions about people.
"We're assuming that only men will buy, so we'll market it for men."
"Hey, a few women like it, and women are huge consumers. Maybe if we market it towards women they'll buy it."
"They have never bought it before, any women who do are weird extremists, most women have no interest in it. This is a man's product. Any strategy marketing to women will fail."

It's a bad argument because it defends a problem by stating the real problem.
"This product is sexist."
"It's not sexist, it's just a sad fact that women are uninterested in the product."
"Well, how do you know?"
"Because women don't buy it."
"Maybe they don't buy it because it's sexist."
"No, they don't buy it because it's marketed to men."
"Well, why not make it appeal to women."
"Women are uninterested in the product."
(It goes on from there)

It's a Useful Argument, however, because it can go on for long periods of time while ignoring things like logic and common sense until the person arguing with you becomes too exhausted to continue.

You just have to remember to never change your stance. Consistancy, despite all rebuttals, is the effectiveness of this strategy. You can change up the wording, but never the actual idea. You'll wear them down eventually.