I think that while bias does happen, in these, cases it's too early to say if that was, the case.
Here in the UK we had white professionals die under the same circumstances. It is said that how much of a silent killer the Covid 19 is, wasn't known.
We know people have died because they didn't get enough early oxygen support and we were deliberately not taking people to hospital.
Allowing the virus to rip through our care homes wasn't a decision based on ethnicity.