tbf that's often where they start. It goes something like: I like Rome-->I want to see that today-->How can someone build an empire in the modern world-->Oh yeah, a few guys did try that...
I think racism is more of an independent correlation than any causative element. The cause seems to be an oversimplification of the world into "natural laws" that are poorly understood, usually surrounding a shallow understanding of survival of the fittest and hierarchical structures in animal behavior. This root branches out into both racism and authoritarianism independently.
This thread is really making me realize how many people just don't know what critical thinking is... :\
Problem solving is not the same as critical thinking. No puzzle or strategy game, that I can think of, has any significant critical thinking component to it.
Wait, just thought of one exception. Social deduction games, like Among Us, when played with live chat, will train critical thinking. Critical thinking is about figuring out if this information is lying to you or not, and if so, how.