I'm one of the stupidest men alive and even I have more awareness of the state of US politics than most American liberals. You mention that 'vote blue no matter who' is the height of idiocy and receive responses about how not voting is for idiots.
Of course it is, because not voting isn't the suggestion being made, but it certainly is a useful straw man for the absolute broomsticks who can't swallow the fact their beloved Democrats are just as complicit in the American political charade.
I want utopian space communism, but I'm not going to hold out for only that ideal when I can support alternatives that are better than the current system.