This is turning into near-Academia level proportions

If UFC is to be called macho, it is only given that label due to society's socially constructed notions of what type of activity necessitates 'manliness'. In this case, mixed martial arts, physical injury and fitness. If I have to be honest, calling anything 'manly' or 'womanly' puts barriers to participation. If a woman wanted to train in mixed martial arts, but still retain a sense of femininity, I don't think she would be treated positively.

In the same way, boxing has this sort of problem as well, I think.