Israel was going to genocide Palestinians either way, dipshit.
The question is do you want a party with members who vehemently oppose it, including a president who openly stated his disapproval and threatened arms shipment cancellations to try to get Netanyahu to the table, or do you want a party with zero members who oppose it and a president who applauds Netanyahu's actions and jokes about turning Gaza into a resort once the Palestinians are dead?
Because unless your brain is fully mush you should understand that in our system one of those two sides will be calling the shots.