Why would racism affect the family structure of non-white families?

The industrial prison complex and war on drugs affect the family structure by removing members of the family.

orly? Then why do black Africans in America have strong family structures and therefore lots of success? Are they immune to racism?

What study or studies have been done demonstrating a causal link between their family structure and success?

What is their average household income?

What countries in Africa do most of them come from?

The grandparent post literally linked to a write up about a Harvard study showing that a two parent family is the biggest predictor for economic mobility. Other studies have shown that time spent studying (not race, not household wealth) is the biggest predictor of SAT scores and thereby university admission.