the vibes have rotten to the core and now withholding for Palestine makes you the much-maligned single issue voter, as if genocide is just a tally on a fucking pro/con balance sheet. People who saw the mass movement and protests on the ground over the past nine months suddenly concern-trolling about no one ever organizing anything and just being nihilists doing nothing while they are doing, in contrast, 'the bare minimum'. Breaking out reformist thought-terminating cliches and yelling at people with families in Palestine for not immediately being invested and engaged in the campaign of the VP of the current administration that is aiding and abetting the deaths of their loved ones. Total lanyard cultural victory. Americans by and large believe in nothing and have no principles, all they want is eternal 2014.
Hindenburg vs. Hitler then, Hindenburg vs. Hitler now, Hindenburg vs. Hitler forever 
Repeating myself for the nth time: People aren't abstaining from voting due to a single issue (genocide). They are abstaining from voting because none of the many issues they find relevant (handling climate change, COVID, the housing market, minimum wage, rampant and systemic racism, overfunding of police, warmongering, medicare for all, combating corruption, the rise of fascism, not being insane wrt border policy, the right to abortion, bodily autonomy, queer rights, labour rights, etc.) are being handled at all, but as long as the democrats aren't committing a genocide, then theres still a reason to vote for them. Now that they are, there's no reason to vote for them.
It's not a single issue. This issue is just what broke the back of a very tired camel. Not doing genocide is a bare minimum which the democratic party cannot fulfill.