Biden is being attacked for a minor verbal slip.

He contrasted "poor" with "white", when saying that children of both groups have the same potential. Maybe he meant to condemn racial discrimination, or maybe he meant to condemn economic discrimination, but he got the two confused and ended up condemning a mixture of both.

Is that a bad thing? We know that the two discriminations often operate in parallel.

I will not vote for Biden, but that's for reasons of substance: he does not oppose the plutocracy which promotes racism and is makes economic discrimination so bad.