Why Even Black People Have Trouble w/Dark Skinned People. The Hate Is Real

We've seen the barage of hate from people of all walks of life thrusted toward Olympic Champion Gabby Douglas. You had many white europeans as well as so called African Americans flooding the social media complaining about how Gabby Douglas didn't put her hand on her chest on the podium during the pledge of allegance to the flag.  Then black folks decided to attack this great young queen, and incredible athlete about her hair?  The question is why are dark skinned people being attacked by black people?  Although they didn't attack Simone Biles more or less because of her story on how she got there, yet nevertheless, she's on deck from the racism and self hate boiling in the bellys of the people in this demonic world!