Which American president did not cause the removal of a sitting leader of a foreign nation from power? Doing it bloodlessly rather than through direct military force or by arming local terrorists absolutely does make you less warmongering than average.

Removing Maduro was absolutely the right thing to do in America's interest, and was relatively inexpensive. Millions of barrels of oil are now flowing out of Venezuela into America, and, as a side effect, other enemies like Cuba are strictly worse off too. In fact, Cuba will very likely either collapse too soon. Another 70 yo problem solved.

> Which American president did not cause the removal of a sitting leader of a foreign nation from power?

Joe Biden. Unless you'd contend that withdrawing from Afghanistan was an elaborate, self-owning plot to overthrow the US-friendly government in favor of the Taliban, which I think goes against the spirit of your question.