I understand that low taxation is a priority in the US, but your taxes go to more than the military and certain kinds of infrastructure. Taxes pay for roads, the postal service, education, local government, law enforcement, emergency services, political representation on a local and federal level, transportation, etc...Yes, but what kind of tax rates did/do you pay in those countries? See, here in the U.S., one of the founding ideas is that you should get to keep that which you earn. The government would tax a nominal amount in order to help pay for things like the military and certain kinds of infrastructure. You get to keep the rest and are responsible for taking care of your needs such as food, shelter, clothing, education, medical, etc. This allows you, the citizen, the maximum amount of freedom of choice to meet these needs in the way YOU see fit. Also, it allows private citizens to create businesses offering goods and services so that they can earn an income to then meet their needs in the way they see fit. The government would stay as hands off as possible, only getting involved when there was criminal activity. So while you are responsible to meet your own needs, you also have the maximum amount of freedom and financial means by which to do so.
In the systems set up in the UK and other European countries, the government has taken on the responsibility of making sure that these kinds of needs are met and, in order to do so, must tax income at a significantly higher rate. Unfortunately, this also leads to a decrease in the freedom you have to pursue the educational, medical, and other such services that you choose both because of your decreased financial means and also because government regulations may restrict what, when, why, or where you can have access to.
So really it's a matter of what your priorities are. Personally, I favor a system that allows maximum freedom and personal choice, despite the fact that it also comes with a certain amount of risk and personal responsibility. These are the circumstances under which the U.S. was able to become such a prosperous and powerful nation in such a short amount of time. The more we move away from those principles (which really began in earnest in the early 1900s), the less prosperity we see. So then the government tries to compensate by increasing their involvement in private lives and industry, which is taking us even farther down the road away from prosperity and freedom.
I get why people are so attracted to the systems in Europe and even Canada. On the surface it seems great. All I have to do is give up more of my income and I get the "guarantee" of all these free services. The problem is that nothing is really free, and frankly, the quality of care in these countries is not as high as it has historically been in the U.S. (which, again, was more true when the private sector was more in charge than the public sector).
In Germany, you pay roughly 8% of your salary for healthcare and your employer pays the other half. Health insurance is compulsory. The government spends 11% of GDP on healthcare. I'm not sure of the exact percentage in the UK because it is part of your National Insurance contribution (like Social Security in the US, I think), which depends on how much you earn and whether you're retired or not.
There does seem to be quite a difference in how much doctors make. A family doctor in the US earns $149,751 a year https://www.payscale.com/research/US/People_with_Jobs_as_Physicians_/_Doctors/Salary, a GP in the UK earns an average of $120,000 https://www.telegraph.co.uk/health/...re-not-paid-six-figure-sums-figures-show.html, in Germany it's $265,000 https://www.t-online.de/wirtschaft/...zte-haengen-fachaerzte-beim-einkommen-ab.html. In both the US and Germany, the doctors' lobbies are very powerful and they are keen to protect their earnings. I think this plays a huge role.
No-one thinks their healthcare comes for free, but it is a set amount you pay for whatever crisis you're having. Health inequality in the US is a massive problem. While some clinics offer world-class, one-of-its-kind treatment, you get the other end of the scale, with Doctors Without Borders style intiatives being set up so people can go and have a mammogram or get their teeth fixed.