The U.S. government spends more on healthcare than the UK government does [1], even though the latter insures all citizens and the former doesn't. The cost of universal healthcare isn't really the issue. The U.S. is spending much more and getting much less.
You see the same thing with the U.S. military. The U.S. spends far more than any other nation on the military, yet look at what happened when Yemen fell apart - the Chinese military evacuated Chinese citizens, the Indian military evacuated Indian citizens, the Pakistani military evacuated Pakistani citizens, and the U.S. government told U.S. citizens that they were on their own[2].
You see the same thing with the U.S. military. The U.S. spends far more than any other nation on the military, yet look at what happened when Yemen fell apart - the Chinese military evacuated Chinese citizens, the Indian military evacuated Indian citizens, the Pakistani military evacuated Pakistani citizens, and the U.S. government told U.S. citizens that they were on their own[2].
[1] https://www.bbc.com/news/uk-42950587 [2] https://foreignpolicy.com/2015/04/21/washington-to-americans...