It's a lot less about sticking it to Biden or even the Dems on any personal level than it is to simply refuse to vote for someone you think is a terrible person who's enabling genocide, regardless even of how demonic the alternative is. You're asking people to go to the polls and affirmatively vote for someone they think is enabling genocide, in some cases against their own family members or people they actually know. Just stop to consider that for a moment.
The argument that the other side is much worse (and it is) is not going to be very persuasive when you can't make an affirmative argument for your candidate that justifies his phenomenally limp and cowardly attitude towards what's happening in Gaza, and something like genocide is a bit larger than the typical single-issue voting strategy.
If you read this signature, then that meant that I had control of what you read for 5 SECONDS!!