Covid-19 Coagulopathy in Caucasian Patients

It kill/wounds preferably African-Americans, then Caucasians and lastly Chinese:

"Critically however, ethnicity has major effects on thrombotic risk, with a 3-4 fold lower risk in Chinese compared to Caucasians and a significantly higher risk in African-Americans."

Sound like an effective ethnic bioweapon. And, since most Chinese American citizens are Republicans and most African-Americans are Democrats, there may be just enough lethality to change the outcome of a USA Presidential election.

P.S. Curiously Africa shows low numbers of Covid-19 (https://news.ycombinator.com/item?id=23010276), the above article seems to indicate that African-Americans do less well than Caucasians or Chinese, so isn't this another part of the puzzle?