And, actually, off the top of my head, Drug Policy Alliance & Stop The Drug War, both mainstream (ie. white led) are two examples of groups having fought the good fight against the war on drugs for quite some time now. It's not just a question of who's being effected—sometimes you just have await the pendulum swing back in your direction.
I distinctly recall back in the 80s many Black community, religious & opinion leaders opposed drug war reform because they felt it neglected their communities, leaving them to self-destruct. One example, an essay by Playthell Benjamin published in, I believe the Village Voice, called for legalization of marijuana & LSD, while also proposing martial law in neighborhoods with active crack & heroin activity, along with summary execution of drug dealers.
My point here is, back in the day, when the elder Bush administration manufactured a consensus that drugs were the nation's main priority, plenty of white folk opposed the drug war orthodoxy while plenty of Black folk embraced it.
Voting rights? Not so sure about that. Maybe it is necessary to experience the same suppression before awakening to its harsh reality.
Finally, wrt schadenfreude, I bet folks on Stormfront & American Renaissance got their daily dose & then some after reading Mr. Dyer's apparent proposal to necklace Christian Cooper for not going after Amy Cooper's blood.