I specifically do remember comics poking fun at diversity initiatives. A quick search of "Dilbert comic about diversity" brings up some examples.

At the time i read those i probably thought they were on point. I've changed my views over the years. You can't keep them or you end up like Adams. That's probably the key to understanding him. He grew up in an era where black students were not allowed to attend white schools. The world changed. He didn't.