If it is pretty clear that it did then you’ll have no problem finding sources that can prove that it occurred, that also take into account the targeted imprisonment that the black community has/had faced since emancipation. Anyone who looks at the black community in the US being destabilized and blames _welfare_ as the cause while ignoring that the legal system imprisons black men at a higher rate than white men regardless of the incident rate of crime is ignorant at best
I read the comment you're replying to as saying it didn't actually destroy anything, it's just easy to infer that from what's visible in records (e.g. statistics). "Didn't actually destroy anything in practice" pretty clearly puts it as against the idea that it destroyed anything though, to my eyes.
