I would go on to suggest racist, instead of racist tendencies just because it drives home the severity of one's inaction, or complicitity in situations of racism experienced by someone else.

I like how you briefly introduced the topic with historical events and offered some starting places for your target audience when confronting instances of racism, etc.

Overall, I felt a lot was explained in such a short time. Some topics could have better served as separate reads.

Thanks for bringing an awareness to these matters though. I feel as though that everything shared was still IMPORTANT, especially for readers looking to refute certain points to continue their racism.