Your counter argument is “Well the shitty decision is more popular so.”?
There are 7.6 million Jewish Americans who still heavily lean in support of Israeli actions.
Then shame them for being shitty people. Don’t shame progressives and leftists for refusing to cater to it. Your accusation that refusing to vote for Biden is support for Putin and Trump is equally damning whether Biden continues to send weapons to Israel or not. Those who would refuse to support Biden if he stopped sending weapons to Israel are just as guilty. The difference is they want to keep bombing people.
Direct your shame and finger wagging to the people who actually deserve it.