The majority of US/UK jews are both pro-Israel and not against what is going on in Gaza
I couldn’t find a worldwide survey but it doesn’t seem altogether unfair to conflate the jewish religion with the worldwide bastion of that religion any more than it would be wrong to conflate Catholics and the pope. This does NOT mean its ok to harm people based on what they believe. Adding to the sum total of harm does nothing to alleviate the suffering in Gaza.