There is plenty of sanity in the majority of Americans.
I had a Serbian colleague who had a Bosnian wife. They were married in the 80s. A decade later, their country fell apart and they fled. He was a very open-minded, thoughtful guy who loved studying history (he also told me he wasn’t a fan of living through it).
The most important point he told me was that the vast majority of Serbs and Bosnians wanted peace and understood that war would be terrible. “In my estimation, it was only about 5% of Serbs who were actually hostile and wanted war. But that’s all it takes, if they’re crazy enough and the system becomes vulnerable.”