I agree with Malcolm X that black people can be racist. He said, " I totally reject Elijah Muhammad’s racist philosophy..."

As for power, that doesn't come from racism. As many black socialists have noted, a racist without power is irrelevant. It's capitalism that gives many racists power.

“If a white man wants to lynch me, that's his problem. If he's got the power to lynch me, that's my problem. Racism is not a question of attitude; it's a question of power. Racism gets its power from capitalism. Thus, if you're anti-racist, whether you know it or not, you must be anti-capitalist. The power for racism, the power for sexism, comes from capitalism, not an attitude.” ― Stokely Carmichael