Why do a lot of women tend to have more respect for the men attacking them then the ones who white knight?

A lot of times when people are arguing online for instance or on this website even. If a man and woman is going at one another then a dude jumps in obviously white knighting not because he just genuinely agrees with her.

She tends to get more annoyed by the person defending her then she is with the person arguing.

Why do a lot of women tend to have more respect for the men attacking them then the ones who white knight?
Post Opinion