Bringing up the atrocities committed by others as a defence of Russia is an interesting angle. You know that more than one country can do bad?
The killing of millions is hard to dispute. Take just one incident, the Holomodor. That engineered catastrophe killed millions and Russia now appears to be trying to wipe out Ukraine again.
It's disingenuous to pretend all of the USSR criticism in this thread is in good faith. Yes, multiple countries can be bad, but clearly one of them is getting way more airtime than the others.
A failed government that oversaw complete collapse of its economy, population and and empire is likely to get a lot of criticism, even if it didn’t commit a huge number of murders, invasions and atrocities.
And a government that colludes internationally to sabotage democratically elected foreign governments, that has committed the worst war time atrocities the world has ever seen, governed by an undemocratic process, where its own citizens can't afford life saving medicine, should get way more criticism than it does.