If only there was a meme that specifically debunked this argument.

I actually agree with you about the behavior of electing "Democrats" in the abstract; the Hillary Clintons and Nancy Pelosis of the party have been selling out the working class for enough decades in a row now that it's easy to become disillusioned. But Biden's record is actually pretty far above the norm for Democrats. And, in this specific election, trying to apply this logic is like trying to fistfight the firefighters who are trying to put your house out, because you heard they misappropriated some of their funding last year.