Why is it that when black girls get shitted on, all guys agree but when non-black girls get shitted on, guys will do everything they can to defend?

I was browsing through GaG a few days ago and I found questions like these:

www.girlsaskguys.com/.../q1347360-black-girls-vs-white-girls

www.girlsaskguys.com/.../q1357787-aren-t-you-just-in-love-with-black-girls

When guys say they aren't attracted to us or don't like us, they get crap loads of up-votes.

White guy: "Black girls are fucking grace dude" *gets 7 likes*

Black guy: "I would never touch a black girl" *20 likes*

White guy: "meh. Asian girls are ok." *Guys storm in and treats him like he's dumb*

Everyone wants to debunk stereotypes about non-black girls but when it comes down to stereotypes about black girls, everyone just sits there and agrees.

No, I'm not hating on non-black girls. No, a non-black girl didn't "steals our menz", I just want to know why guys are so quick to call us black girls ugly/agree with other guys saying we're ugly but let ONE guy say an asian/white/hispanic girl is a 6/10, everyone will call him gay, he's stupid, they have baby features, have sweet bodies the shape of 10 year olds, etc.

But when guys shit on black girls about our looks, personality, etc., guys will even take the time to write a book as to why they don't like us. I get that it's an opinion to not like a certain person, but why are black girls always being talked about?

Like, what the hell do you guys THINK of when you hear the words "black" and "girl/s" put together?
Why is it that when black girls get shitted on, all guys agree but when non-black girls get shitted on, guys will do everything they can to defend?
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