Using the method described in your reference material, The US has a death rate of 1.7% of known cases. Canada's is 2.8%. Canada, like most of Western Europe, uses a universal care model that stresses access to basic services over specialized care. Waiting lists in these countries for specialty care and diagnostic services are legendary. In the UK, the normal flu season puts an enormous strain on their system every year. I have predicted, in debates with those who support Medicare For All, that these systems would underperform in a pandemic. What you are referring to is a consequence of the designs of healthcare systems that predated the Trump presidency.
On the other hand, Canada's infection rate is 1.3% while ours is 5.6%. That is what happens when one country wears masks and distances, while the other does not. Had we practiced universal precautions better, like Canada, our total deaths would probably be closer to 100,000 instead of 300,000.