We've already seen what a Trump replacement looks like, though. It was Joe Biden and he's the one who started the genocide in Palestine. He also wanted to fight Russia to the death of every last Ukrainian.

Reaction in the US isn't exclusively republican. Had Trump been assassinated or lost reelection, a democratic president would be sitting in front of us talking about how Venezuela is a threat to US sovereignty and security. The Gulf of Tonkin was a lie by a democrat. Pol Pot was backed by a democrat. Libya has open air slave markets because of a democrat.

So the point still stands: adventurism is just adventurism. Violence has a place and is not only justified, but necessary. But it has to have revolutionary organizing behind it with changes that are systemic.