And yet no more wars, isolationism was one of the main Trump election issues
kindasorta
He criticized the Iraq war(and lied about having opposed it at the time) because Jeb was nominally his biggest opponent, but he also kept doing the "shoulda taken the oil" bit, saying he'd withdraw from the JCPOA, and telling the (fake) story of a commander using bullets soaked in pigs blood to kill Muslim combatants.
To the degree there was anything making it all cohere it's his weird, childlike way of calculating material benefits and "deals," hence wanting NATO members to pay us, asking his advisers why we don't just seize Venezuela's oil, etc. Some people were so desperate to have an alternative to our forever wars (understandable!) that they talked themselves into him being an actual dove.