Over 23 thousand COVID-19 deaths occurred among the migrants in the USA where about 300 M (15% of international migrants) are residing. You may obtain some useful data from the recent reports by the Int’l Organization for Migration (IOM) in the following file:
I think it would be more prudent to develop and understand the micro-fundamentals (from the city/state) of Covid-19 as it relates to older immigrants and asylum seekers before we draw any macro-conclusions from an international perspective.