It's oversimplified in terms of the drug landscape; fentanyl != meth != alcohol, and the reasons people use them are different. You could simplify it as escapism but you'd be incorrect. Or rather, where do people want to escape to? That has little to do with the racism of the 1970s when interracial marriage was literally illegal though which is when the original drug war and those laws date back to.
Definitely over-simplified for the drug landscape, but I still think that users roughly sort into these two categories.
I also think its incorrect to define this sort of escapism as escaping to something. IME people escape from something — the “to” doesn’t matter as long as the “from” ain’t there.
I’d further agree that it has nothing to do with interracial marriage — not sure where this point came from?
The “War on Drugs” as Nixon named it isn’t the beginning of the story.