The Kerner Commission, appointed by President Johnson in 1967 concluded that it was white racism that caused the riots in the inner cities. Here's a portion of their findings:
The report's best known passage warned: "Our nation is moving toward two societies, one black, one white—separate and unequal." The report was a strong indictment of white America: "What white Americans have never fully understood — but what the Negro can never forget — is that white society is deeply implicated in the ghetto. White institutions created it, white institutions maintain it, and white society condones it."
Its results suggested that one main cause of urban violence was
white racism and suggested that white America bore much of the responsibility for black rioting and rebellion.
I believe that perhaps what you say can be true of individuals, but had the country as a whole and had the institutions treated Black people better and with equality, much behavior would have been changed. And perhaps still could be.