I see that lots of people could use a refresher or (I suspect) just a fresher on how readily young people develop biases against other groups of people: https://onlinelibrary.wiley.com/doi/10.1111/desc.12580 and https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8146176/ and https://spec.lib.miamioh.edu/longform/readyones/

There's a reason why powerful organizations put propaganda in children's books so frequently: It works. I thought this was self-evident.