If by "many Americans" you mean brainwashed leftist college age girls with piercings and tats and pink hair who think there are only two things that are important, the climate and at will abortions at any time.
Majority in U.S. Now Disapprove of Israeli Action in Gaza
Approval has dropped from 50% to 36% since November
https://news.gallup.com/poll/642695/majority-disapprove-israeli-action-gaza.aspx
That’s 64% of Americans who disprove of Israeli Action in Gaza. So that includes more than just your “brainwashed leftist college age girls with piercings and tats and pink hair who think there are only two things that are important, the climate and at will abortions at any time.”