Everything else you said really just doesn't make sense, and I am pretty sure that this is a troll topic.
This is sadly true though. If you have seen the occasional dumb 'social experiment' video, you will know that this is a sad fact in society. Women can be just as bad as men in some respects. I think a lot of men can agree that if a woman is punching you and physically abusing you, then you should have the right to stop her at all means, without causing permanent damage. Some white knights will argue that you should never hit a woman no matter the circumstance, but some are insane and will chase you around with knives. Obviously the cops should be called, but they might not believe you, as you mentioned.