"Our rate of testing is far greater than theirs." (IS true)
and, since, in your mind, that completely explains why the US has a higher number of deaths than those two countries, it must also completely explain why the Denmark, the UK, and 28 other countries have higher numbers of deaths than the US has.
Now if you want to look at "Deaths per Million" the story is completely different and only 20 other countries have higher Deaths per Million" rates than the US has and only one of them is testing more than the US is.
But you knew all of that when you posted and were just hoping that no one would point out the falseness of your statements - right?