If they had to model all the generlocked gear for the other gender, it'd be twice as much work to make sure the items don't clip too bad, the skin on it doesn't get stretched weird, etc etc.

Some of you act like it's just genderlocked because they hate you personally, and that it'd be effortless to uncheck a box and it'd work for everyone.

While it would be very simple for some items to work for the other gender, many would not.