These are just conjectures. If you really wanted to test them as hypothesis, well, you can design surveys, studies, or look at proxy data. A willingness to sell black people to private for-profit prisons isn’t really all that different than selling to aliens.
Stories are useful in a world where society and politics are built upon them. For all the accomplishments of the Enlightenment, the most powerful country in the history of human civilization still runs on racism, concentrated power, entrenched wealth, and irrational religion. Humans are not scientific creatures. That’s not the fault of CRT, probably just human biology, and sociologically as well as episdemiolgicslly (sorry, I can never spell that word… The study of the structure and process of knowledge) it’s useful to critically analyze the beliefs underlying that system.
If science relies on falsifiability, it must itself be open to falsification – if not of its methods, at least of its practitioners and results. Politics drive science more often than science drives politics would be my (entirely falsifiable) hypothesis.