That's your opinion or the opinion of those you know.
That's the
majority opinion of people who live in countries with UHC. It is also the objective fact that health care is cheaper per capita in every country that isn't the US and standards of health are higher in terms of statistics such as life expectancy.
I have friends in the UK and friends in Canada. Virtually everyone I know tells me it's not great. The UK folks in particular tell me they have to have an additional private policy to ensure their care.
This is called "cherry picking." At best your friends represent a minority opinion in those countries and at worst you just ignore the bits you find inconvenient. But if anecdotes are all of a sudden important now, I know Canadians that are
afraid to consider moving to the US even if it would be better for their careers because they are afraid of getting denied simple, basic care.