Lets put it in a percentage then maybe you can see why.
Base on your statement, referencing to statista.com. There are 2.28 million cases in Africa compared to 15.159 million of USA, and 54,209 deaths in Africa while 282,000 in USA.
By percentage, 2.37% of the total cases in Africa results to death while 1.86% of total cases in America results to death.
We all know that cases are based on the faulty PCR test. But if you don't, search on "Accuracy of the PCR test." Or look here - Dr. Fauci admits the PCR test for coronavirus is all but useless as it is administered in the US - https://alethonews.com/2020/11/03/dr-fauci-admits-the-pcr-test-for-coronavirus-is-all-but-useless-as-it-is-administered-in-the-us/. So cases don't really mean anything. But let's try deaths per population. From the statistics, above, by Statisa and Worldometer...
The US population has about 0.08497503% of its people who have died from Covid.
The Africa population has about 0.004% of its people who have died from Covid.
Your odds of dying from Covid in America are about 21.22 times greater than dying from Covid in African.
That's not how you do statistics when it comes to the whole population, comparing to the number of cases, and deaths.
4.57% of USA population has been diagnosed with the virus while only 0.17% of AFRICA's entire population has been diagnosed of covid, And by my previous statement, that is the only percentage of deaths to be considered if you will do statistics.
Aside from that, there are also lot of country will low number of cases, "Could it be that these countries had been using hydroxychloroquine for decades as a malaria cure? But Americans don't use it except when traveling abroad?"
Also, take note that AFRICA is a continent while USA is a country.
Is that your diagnosis of the USA and Africa? Or was it done by doctors (not including you if you happen to be a doctor)?
Also, if the diagnosis depended on the PCR test, it is faulty.
Also, is there a list of how many people of each country were examined so they could be diagnosed?
Again, no matter how many countries use HCQ, using the PCR to diagnose makes the whole diagnosis a failure.
We were basing the numbers on the statistics from Worldometer and Statista. Did you find language in those sites that answered most of the questions out there that show that the simple numbers aren't the way we might like them to be?
Hopefully you can see that the whole diagnosis around the world is flawed in one way or another, and that the statistics don't make any difference, because it is not known how accurate they are by a long shot.
However, based on the simple numbers in the websites, cases don't make any difference with regard to deaths, AND Africa is doing something way better than the USA.