And black people now have voting rights. Incremental change is still change. If we lived in a just world a lot more would be done, I don't disagree, but the need for those reforms underscore just how far we are from a just world.Black people have been hearing this since before we had voting rights.
Literal centuries of being told to wait, and enough elections where principles are thrown away when they're convenient (including this one), and I'm starting to think that Democrats and their philosophical ilk aren't actually after minority liberation and equality, but are after a comfortable status quo where oppression is simply ignorable.
Also most white people aren't after minority liberation and equality and instead just want a comfortable status quo. But the Democratic party apparatus is in the hands of whomever can seize it. Voting for Dems isn't in the best interests of minorities because doing so will convince white Dems to commit to meaningful action improving systemic oppression and inequality. Voting for Dems is in the best interests of minorities because the party already includes more minorities in the seats of power, is more willing to at least consider minorities for major seats, and most importantly is the one with the smallest entrenched white monolith of voters and therefore the one most easily taken over via insurgent movements. Its either/or in a first past the post system.
Minorities voting for Biden has value for minority interests the same way unions voting for Biden has value for unions. Does any pro-labor person really think Biden is going to just scrub neoliberal economic policy? No, but Biden as POTUS will give more power to pro-labor congresspeople and give labor rights groups a bigger megaphone to speak to both politicians and to the public. Together those two facts can begin to change the narrative.
Biden (and the current Dem party as a whole) is a semi-tolerant host for progressive causes, giving them a way into the power structure, even if inch by inch. That doesn't mean direct action isn't still required. I'd argue that protests and similar will be more important under a Biden administration as then it might actually drive policy reform, since they would be more politically damaging to Biden than they are to Trump.
This of course assumes that everything isn't just inherently fucked, but if thats the case nihilism was the right answer and we're all fools for ever thinking otherwise.