I don't question any of these things. They are all perfectly true. The wider problem is point 4 doesn't play well with the working class white voter. Your argument is perfectly formed and indisputable but I don't think it's the right tactic to take. The left can either go to war about different facets of privilege (the current favoured model of the middle class - and watched with increasing glee by the political right) or it can unite behind an economic socialist and improve the lives of poor people across the board and watch racism (and other isms) decrease as a result. That's what the UK did. We aren't a bastion of racial harmony, but the schemes put into action by the Labour Government (1997-2010) reduced the overall racism in this country by a significant margin. People who have enough money mix, people who have free childcare have children that mix, people who have free healthcare don't become homeless and turn to crime, people with youth centres don't join gangs so frequently, people with alcohol and drugs programmes don't let their demons eat them.
Racism cannot be solved by insisting on white supremacy and white privilege becuase the arguments for it don't appeal to working class white people, who make up enough of the electorate to be a problem. An insistence on identitarian politics over socialism will see a right wing Government return with avengance in 2024.... not that the US has ever had a left wing Government. The Democrats would sit quite nicely in the centre of the UK Tory party. The political left has to push together to bring in someone who can genuinely improve the lives of all, not push in a myriad of directions to improve the lives of some. That's a tough pill to swallow for the nascent BLM movement, but it's the political reality. Identity politics is pushing the demos to the political right in what will become the ultimate pyrric victory.
Glad to see you popping up on my feed again. The algorithm hasn't thrown your stuff at me for a while - so it's great to be back on the Helligar bandwagon. :o)