That's not completely true. For example, the rationale behind the war on drugs (Nixon era and revived by Reagan, long before McConnell) was not about truth or moral virtue.
It's the southern strategy at work. It's not about what is true or what is morally right. It's about not letting *the other team* get any wins. This is why they needed to pretend COVID wasn't a big deal, because otherwise you are admitting that *the other team* was right.
Is it really that ridiculous to put minorities in the spotlight for a few years? Try watching a "popular" movie from the 70s, 80s, 90s, or early 00s (e.g. Star Wars or Lords of the Rings). It is very depressing how blatantly they are excluded.
Featuring minorities for a while isn't that big of a deal. It would be an incredible moral failing if we pretended racial representation is all fine now.