To briefly quantify some things: US public support at the onset of the Afghanistan invasion polled at 88% [a]; at the onset of the Iraq invasion, 62%, rising to 72% [b]; and Venezuela here and now polls at 30% supporting "U.S. taking military action in Venezuela" [c] (Nov. 19–21 2025).
[a] https://en.wikipedia.org/wiki/International_public_opinion_o...
[b] https://en.wikipedia.org/wiki/Public_opinion_in_the_United_S...
[c] https://www.cbsnews.com/news/poll-venezuela-u-s-military-act...