Uh no, all of these are facts as demonstrated by those countries without UHC and are inherent downsides without UHC. The only one you could possibly dispute is the "costs twice as much" one, which may be unique to the circumstances of the United States, but you've offered absolutely nothing more than "I have a deeply held faith that government makes it higher cost and less efficient", despite the empirical evidence showing no such thing with all the other UHC countries having reasonable cost with reasonably good outcomes, brilliantly demonstrated by the cheap cost (literally only 30% is spent in Taiwan, per person, compared to the United States) and high quality in the country you currently live in. It's like you are plugging your ears and going "la la la".