That's the overall mortality rate though. He's probably taking about the mortality rate in the past week, past day, or past hour.
"In the period from 1:35 pm to 1:37 pm Eastern Time on July 3rd, the US had the least number of deaths per 100K population in the world. We're Number One!!"
Well, that's far from true as well.
The countries above the USA in total corona deaths are having almost no deaths at all these days.
Current death rate in the top ten deaths per capita countries (ignoring micro nations):
Yesterday:
Belgium - 0 deaths - 0 per 1 million population
UK - 16 deaths - 0,94 per million population
Spain - 3 deaths - 0,064 per million population
Italy - 8 deaths - 0,13 per million population
Sweden - 3 deaths - 0,3 per million population
France - 13 deaths - 0,2 per million population
USA - 378 deaths - 1,14 per million population
Netherlands - 1 death - 0,06 per million population
2 days ago
Belgium - 0 deaths - 0 per 1 million population
UK - 22 deaths - 0,32 per 1 million population
Spain - 0 deaths - 0 per 1 million population
Italy - 7 deaths - 0,12 per 1 million population
Sweden - 1 death - 0,1 per 1 million population
France - 7 deaths - 0,1 per 1 million population
USA - 262 deaths - 0,8 per 1 million population
Netherlands - 1 death - 0,06 per 1 million population
Now there
are countries with a higher mortality rate than the USA. But there's not many of them, and it certainly doesn't seem to be much to brag about.
(Looking back at it, you're probably not really defending this, but being sarcastic. But I already did the numbers, so I will let them stand.)