You bring up a lot of very good points but I think that you are seeing things incorrectly. Few will disagree that Plessy v Ferguson was a baddddd decision. It went against everything contained in the constitution about individual liberty and freedom. After it was overturned blacks took to boycotting and picketing establishments that served whites only or those who refused to seat blacks at white counters. Those businesses had a choice to make… either maintain their business as white only or lose black customers and white customers that sympathized with black customers. This is, of course how a society comes to terms with its population… slow but natural and would have likely fixed our race problems well before now… but democrats had other ideas… of course those ideas were to keep blacks ‘satisfied’ and voting for democrats for years. They pushed through the 1964 civil rights act. Some of its provisions were good… Republicans attempted to pass them back in 1957 and couldn’t because of none other than LBJ himself.
Title II and Title VII created the antithesis of Plessy… if the government has no right to forcibly segregate people, it has no right to force them together. To get around this they once again twisted the Commerce Clause to achieve their am… continued control of blacks and the social structure of the United States.
Had the 1964 civil rights act not contained those two provision, I believe race relations in the US would be far better than it has ever been… Local communities would have had their own police forces and Ferguson would have never happened… Blacks would have been directly responsible for their own communities and Baltimore never would have happened… and many black businesses would have thrived rather than withered as black customer all went to ‘whities’ stores… and perhaps black business would have created a black doll for their children just as they created hair straightener for their women. You are right… racism is institutionalized but it isn’t by the people you want to blame.