Majority of Americans say Israel’s response to Hamas attack is justified, CNN poll finds
www.politico.com
But the majority also said they feel at least some sympathy for the Palestinian people.

Iraq dominated the headlines throughout the fall of 2002 and into the winter of 2003. Public opinion on the wisdom of war, however, stabilized relatively early and slightly in favor of war. Gallup found that from August 2002 through early March 2003 the share of Americans favoring war hovered in a relatively narrow range between a low of 52 percent and a high of 59 percent. By contrast, the share of the public opposed to war fluctuated between 35 percent and 43 percent.

Looks like Americans are even more happy with murdering people if its done by a puppet.

https://www.brookings.edu/articles/rally-round-the-flag-opinion-in-the-united-states-before-and-after-the-iraq-war/