Of course, all those other things you mentioned are, in isolation, much worse than these recent Russian affairs, and obviously the Western media takes a particular thrill in being putting on the mantle of courageous defender of human rights to condemn a geopolitical rival. But a bunch of workplace strikers being gunned down by an undisciplined police force isn't really indicative of much (as outrageous and terrible as it is), while Russia doubling down on shutting down internal dissent, despite international attention and condemnation, is very, very interesting and worthy of attention.
(1) Yeah, yeah, South Africa stockpiled and proliferated a hundred nukes or so in preparation for a race war. Point still stands.