I sometimes wonder....there was a study done a long time ago about race and IQ. The researchers posited that blacks had, as a group, on average, a lower IQ, and noted that lower IQ had some correlation with more violent behavior. Now, I’m not saying I agree with their research paper. However, recent events...
Fortunately the great Thomas Sowell pointed out that these can dramatically change in a generation. (https://youtu.be/Fwn1TfFmLUk) So, perhaps we’re seeing the effects of a generation of lower education standards, bad home life & broken families, drug use, bad nutrition, and leftist ideology. That more than any inherent difference is what is destroying America.
It is a very well written and reasoned work.