Wanting to end racism is a different thing to wanting to prevent the spread of a communicable disease. You can want both things simultaneously, they're not in conflict.

It's also not necessary the same governments, or just government at all.

The federal government abdicated their responsibility to manage quarantine and border security to the states. It's been the states that have been managing quarantine, largely through Hotels (except in the Northern Territory, where they've had the Howard Springs facility.

Why is this strange? Turns out there is a lot of people that see no problem with collective guilt by spreadsheet and scapegoating of those caught on the wrong side of said spreadsheet.

I have no idea what your point is with that comment. If you think the government in place is a result of centuries of systemically corrupt oppression and then you turn around place faith in that same systemically evil government you're either drowning in cognitive dissonance or you're just a hypocritical authoritarian that's ok with the "evil" as long as it puts your agenda in place.

The 3rd alternative is that you're not aware of what BLM means when they discuss systemic racism. It is not just guilt, it opines that the entirety of western civilization is corrupt due to it's creation by racist evil white men.