I'm afraid I'm not as optimistic as you. What Russia correctly worked out is that, if you can create the requisite content, you WILL get people to watch it, just statistically. And because you're (indirectly) feeding it with a coherent, directed intention, including specific elements like 'the Russian Bots people are talking about don't exist and anybody saying so is a loony', you can get your bubble of alternate information to grow and serve useful purposes (useful to you: NOT necessarily useful to the people you're using to fill your bubble)

You absolutely can make people watch it, even side with it passionately to where they'll burn through their friends requiring loyalty to the information bubble. It's a matter of statistics, and directing the contents of the information bubble with reasonable effectiveness. It's a bit like nuclear fusion: sort of 'wait, these lumps of metal do THAT?!?'

Yes, in fact they do. And, yes, you can direct HUMANITY to whatever ends you like, including 'The USA should be torn to bits by civil war please, so it is no longer a rival superpower'. Plenty of people out there would find that useful, wouldn't even have to be exceptionally short-sighted. Mind you, it's still damn reckless even if it is not absolutely short-sighted.