I've explained many times why he doesn't have to, just because you live in a fantasy world where learning martial arts suddenly makes you unbeatable doesn't change that, but because I try and help the mentally handicapped as much as I can, I will spell it out for you for the third time.
He is a professional boxer, that means his strength and footwork will be good enough to attempt to stop a takedown, now this will not be enough to stop a blast double from mendes but against a straw weight female, that is all he needs.
Again, women, even professional fighters, are not strong enough to take down or throw an average male, especially not a trained athlete. If you actually think they can, I beg you to please either train in the sport or maybe try weightlifting if you are getting put down by tiny females.