This is a multi-faceted issue that requires an approach beyond shaming; a lot of this will be repeated for the other thread but I think it warrants it.
Fact is, America is an inherently bigoted, power-hungry country by design, and that means the systems that we all navigate are also tacitly set up to support that goal. Minorities vote in lock-step for Democrats every four years for relatively little material gain in return for the effort, or even a "thank you for doing the job straight white people can't be bothered to do;" it's no wonder many don't care to participate, or even see participation as immoral. The country is rotten and has been since its inception, so what is a return to the status quo supposed to really mean to the disenfranchised who feel they have nothing to lose? Any remotely self-aware leftist cannot advocate for the systems that destroy the ones they claim to want to protect even in Democratic administrtions by saying that the problem is only bad actors. This is just dogma. Bad actors will always exist as per human nature, and we have no answer for them when they get the reins. At all.
Also, you cannot argue in 2020 that voting for Joe Biden is not full support, or even just a lack of prioritization, for Joe Biden's behavior. Ever since Trump decided to make that "Mexico is sending rapists" bit, we said that if you vote for Trump then you are supporting for everything he says, does, and believes, even if you didn't consciously vote for the bigotry and stupidity. And yes, it's easy and comforting to catch cowardly racists off guard like this, to force them into the uncomfortable position of having to admit to, inevitably, supporting racist power structures. But you can't now backtrack on this principle that a vote is full support now that your guy's on the chopping block (especially since it gives Trump voters an out, and fuck them). Minorities have long memories. We're going to remember this hypocrisy.
At the very least, we need honesty. Just like I wouldn't be able, and certainly never would have the gall to try, to tell a Middle Eastern family impacted by Obama's drone policies "don't blame me, I didn't like the drone policies!" I also won't in good conscious tell sexual assault victims I didn't support a rapist because it's uncomfortable. That's what happens when you vote. American politics are trash. That isn't a condemnation of the individual; it's just a simple matter of fact. Self-awareness and honesty to the vulnerable is what is needed. And I think, going from the view that our systems in place are counter intuitive to basic human dignity, we should start working on political actions that seek to counteract that, instead of just hoping our problems will go away this November.