Karl Marx said:
The relationship of the revolutionary workers’ party to the petty-bourgeois democrats is this: it cooperates with them against the party which they aim to overthrow; it opposes them wherever they wish to secure their own position.
What that means in the American system is we vote against liberals in the primaries, and we vote for them against the fascists. America doesn't have ranked choice voting, but voting socialist in the primaries and left (out of the two candidates presented) in the generals is the closest approximation. This is the Karl Marx approved strategy, as you can see from his speech to the Communist League.
Now let's talk about this meme. It's fake news. There was no Alligator Auschwitz under the Democrats. Guantanamo Bay wasn't a concentration camp for immigrants under the Democrats. I submit that the Democrats are at least 1% better than the Republicans, and that this proves the meme is fake news. And if anyone replies to this comment and says well 1% isn't good enough, I'm going to accuse you of moving the goalposts, because this meme says colour is the only difference. The meme doesn't say 1% less people get run over by the trolley, and I think there are at least 1% fewer state caused deaths under the Democrats.
If you go to university and do any kind of field that involves essay writing, you'll learn to use a thesis statement to summarise your argument so people know what you're arguing for. You've provided some evidence, but it's entirely unclear what your position is in this conversation other than "the democrats do bad things sometimes". If your entire position is "the democrats do bad things sometimes", then great job! We're all very proud of you for proving the democrats do bad things sometimes. Now go do your fucking job developing the Lemmy software, because this software is full of issues and the grownups are talking about important issues that actually have a point.