All online spots - forums, bbses, etc. - had at least one troll reposting from the offical news. More places than one had these as mods or admins. Agitating and stirring the pot was a daily occurence, which was quite effecient given that migrant communities tends to comprise people that aren't exactly well off and generally happy with life. To give an example - people discussing faking a divorce to double their unemployment benefits, that sort of thing. So given them an outlet to vent was working well. Conversely, those who were better established steered clear of these and formed smaller clusters of their own.
So what the GP is experiencing is likely related to them being (originally) a part of one of these poorer bubbles and the effect just lingers on.
The US was was relatively good at integrating migrants into a certain idea of america, but that's not the norm around the world, and I don't think that vision of america exists anymore. Maybe in the upper-middle class, but certainly gone in the lower classes.
Not to mention Brits who moved to Spain because there were "too many bloody immigrants" at home.
Yes, after Soviet Union fell, we Russians found out that all we've been taught about capitalism was true: unemployment, dog-eat-dog competition, class divide and all that stuff. It's not at all a paradise we have imagined. It's time for you to see that all you've been told about Communism was true, too: McCarthy was an idiot, but he was right. There are no "good Russians" waiting to be liberated from "evil Putin". There are "evil Commies" who Putin wholly represents.
Stop trying to "fix" Russia. It is impossible. It has to be contained, made as weak and irrelevant as possible to present less danger.