This is simply not true, this is Western paranoid fantasy. It's also the kind of fantasy that allows escalation of surveillance and censorship. You should look up the "missile gap."
Also, Russian and especially Chinese leadership doesn't go unchallenged. Chinese leadership has had many transitions. While Putin has squatted on the leadership of Russia for a very long time now, it isn't because he's not popular, and he's forced to do a lot of things he'd rather not do because of pressure on his leadership.
How do the neoliberal rulers in the West stay on top with extreme minorities of popular support, like in France or the UK? Why does popular opinion have no effect on the politics of the US*, and why are its politics completely run by two private clubs with the same billionaire financial supporters (that also finance politics all over the rest of the West)? How do they do it without massive surveillance, censorship and information control? Or a better question: how can we be given the evidence of massive surveillance efforts and huge operations dedicated to censorship and information control, over and over again, and still point to the East when we talk about the subject? Isn't that "whataboutism"?
* "Testing Theories of American Politics: Elites, Interest Groups, and Average Citizens" https://doi.org/10.1017/S1537592714001595