Earlier quoted context omitted.
> the US had formal, legal discrimination against black people this is misinformation; State laws had complete jurisdiction over certain matters, by design. "The US" is calling Washington State the same as Alabama. So, no.
I think you’re missing the point. The US had state, local and private laws, regulations, and institutions that discriminated against black people with varying degrees of formality. The discrimination in question existed and was widespread in the US.
https://www.aclu.org/know-your-rights/discrimination-on-the-...