You cannot remove politics from racism.
Unfettered capitalism undoubtedly contributes to and creates the conditions of exploitation, racism, economic and social injustice, and worse.
There is not a single, solitary doubt about that. Its not even debatable. Surely you have even some rudimentary knowledge of the nexus of imperialism, colonialism, and unfettered capitalism.
That is why nobody actually practices pure, unfettered capitalism. It is an abhorrant system of exploitation and greed, driven by the soulless trappings of the profit motive.
For over a century, the liberal social welfare state has been the model. It obviously includes a modified version of regulated, restrained capitalism.
And within it, people of color (for the most part) have convinced society to accept some nominal level of equality under the law in our legal and political systems. And while individuals of all stripes can be bigots (and I have to remind myself that I benefit from white privilege), it is generally the American rightwing that systematically and deliberately seeks to tear down these modest institutional gains in legal and political equality.