I said I could be wrong. I don't know your cousin to speak on his experience.
If that's how he feels then so be it, but to make assumptions about an entire group of people based off the actions of a few isn't logically sound.
Were ALL Black women in his life terrible to him growing up, or did he choose to only focus on the negative experiences?
It's not a valid reason, but that's just my opinionata.
I hope he & his queen have a happy life together tho.