…it’s certainly fair to note that people opposed to desegregation decided that one way to solve the problem was to get rid of public schools, allowing racists to choose a lily-white educational environment for their children. Maintaining Jim Crow is a vile motive, and it can’t be denied that that was one historical reason some people had for supporting school choice.
Only the proper answer to this is, So what? You cannot stop terrible people from promoting sound ideas for bad reasons. Liberals who think that ad hominem is a sufficient rebuttal to a policy proposal should first stop to consider the role of Hitler’s Germany in spreading national health insurance programs to the countries they invaded. If you think “But Hitler” does not really constitute a useful argument about universal health coverage, then you should probably not resort to “But Jim Crow” in a disagreement over school funding.
If you think we can’t allow school choice because Jim Crow, then it would be just as logical to oppose minimum wage and gun control, because historically, their purpose has been to control blacks.