I am honestly curious because there are countries with more impactful and tangible geopolitical interests (e.g. Saudi Arabia - who owns a substantial portion of Twitter), and yet it's only the comic-book villain, Putin's Russia who apparently does this.
The other alternative is that Russia does this, but so ineffectively that they stand out, but that seems unlikely because it would also imply that other countries do it so effectively that no one notices.
The third alternative I can think of is that interested parties are okay with the direction in which some foreign powers want to sway American public opinion. Those interested parties control the mainstream media - or enough of it - to be able to decide which countries' bots get reported on and which get ignored. Honestly it's this option that I find exponentially more likely.
Also, I'm fairly certain that "let's influence the US public" is such a large undertaking that most small countries won't even attempt it. And you need to be strong enough to not get bombed if it becomes public, that narrows down the pool of countries a lot, so it's basically only Russia and China, possibly India (but they are allies), everyone else is either too small or too weak (ignoring Europe, they are much too close to the US).
Smaller / weaker countries might try to just buy influence, like Saudi Arabia, by hiring a PC agency and printing fancy brochures, or using lobbyists.
And, yes, of course all other countries do that. And of course it would be silly to say that "nobody notices".
https://www.nytimes.com/2017/06/19/opinion/was-lenin-a-germa...
Anyway, it's a fallacy to think that Russia would be fine without the Revolution. Peaceful transitions to liberal democracy are an exception that only happen on very particular cases.
Albeit it took longer and it was "gradual" but few of them had the hyper-violent post "vanguard" revolutions events that resulted in some of the worst tragedies in history?
https://en.wikipedia.org/wiki/Great_Purge (note famous french liberal Jean-Paul Sartre attempted to cover up news of this event in the west because he thought it would hurt the spread the revolution to the global "politeriat")
https://en.wikipedia.org/wiki/Cultural_Revolution
https://en.wikipedia.org/wiki/Reign_of_Terror
Almost all violent revolutions have resulted in a stain on world history. Yet the (less news worthy) numbers who gradually adopted independent courts and shifted from monarchy to republican/parliamentary power are much higher, and none of them had awful mass murders of people whose ideas weren't "in line" with the revolutionary ideology, not long after the revolutions.
These activities aren't what makes Putin's Russia a villain. They're just cited as more evidence in a book that was written long ago. How many dissidents have been murdered by the Kremlin?
Also, there's that whole thing about how Russian intelligence phished and leaked the email of a US presidential campaign manager. But that's only bad if you didn't win, apparently.
I’m with you, if it’s as comically easy to undermine American elections as has been reported (just takes a few hundred thousand bucks worth of Facebook ads), it’s only logical to assume that China or literally any other country with an axe to grind is doing the same thing as Russia.
But to answer the question, Russia is a great scapegoat (as apparently the only country in the world engaging in disinformation campaigns) because the villains are white. If you were to accuse, say, China of doing what Russia is doing (which let’s face it, they probably are), the argument could instantly be shot down with “that’s racist.”
The West did this type of thing, but sucked at it — western powers usually backed traditional or incumbent people in power, and usually for a more specific purpose.
What these guys do now is just push narratives of fringe or divisive people, with or without cooperation or knowledge of the principals. The goal is chaos. Normal, more effective political figures Having oddballs like Trump, Jill Stein, Sanders, etc in positions of fleeting or lasting prominence happens when messages get magnified and legitimized.