Yeah, and I could be invisible if only all the photons bouncing off my body got together and agreed not to go into anyone's eyes, but that ain't happening anytime soon
You'd think so, but the history of the past 30 years shows that they'd rather lose, if it means maintaining the neoliberal economic order. As such, the DNC works entirely within a reductive paradigm under which they can only move in one dimension, right or left within that order. If they move one way, they'll lose voters on the opposite flank, so they do the calculation and find that it's better to move rightward.
Of course, there's good evidence that Bernie Sanders would've attracted a lot of voters who consider themselves Republican. To fit that into their paradigm, though, it would require that voters make a huge, discontinuous leap from right to left, which doesn't parse. It makes sense though when you consider that those voters don't see themselves as right or left, but rather felt like Sanders spoke to, and cared about, their (working-class) issues. (It's also the rigidity of this paradigm which made Democrats rage about "Bernie Bros" in their party refusing to vote for Clinton, which in actuality wasn't a thing.)
The neoliberal economic order is very lucrative personally for our representatives, so good luck trying to get them to break from it.
Not necessarily. If the Democratic party loses more voters than they gain by appealing to communists, then appealing to communists would make them less likely to win, thus making Republican victory more likely.
Then you're voting in favor of someone who will support it more. There's exactly two possibilities this election cycle, barring any issues with mortality, and both of them support this genocide. When you get to your polling place, you should think about which option will be the most likely to lead to the best outcome. Obviously a third party would be the absolute best outcome, but it's also the absolute least likely possibility. The only options that are likely are biden, who will maintain the current genocide, or trump, who will expand the current genocide, and also make your and your countrymen's lives materially worse as well.
A lottery ticket is arguably the best possible way to spend your money, because you can turn $2 into a million. But you get that spending all of your income on lottery tickets is stupid, right? I hope I don't have to explain this analogy any further