The issue wasn't that people didn't show up. There was record turnout for a primary race. The issue was concerns about electability. The talking heads kept repeating incessantly that Biden had the better shot at beating Trump. It was complete bullshit based off polls, but people believed it. Beating Trump was the top priority with policy taking a back seat. The position we are in now is the universe's sense of irony.

The thing that fucks American elections isn't our abysmal turnout. It's the complete lack of civic involvement between elections that makes voters easily malleable by expensive ad campaigns.