As it is hard to swallow for what happened in 1989, that was a fraction of people, not all people as a monolithic sense. And that fraction is not strong enough

As it is hard to swallow for what happened in 1989, that was a fraction of people, not all people as a monolithic sense. And that fraction is not strong enough to overturn the existing ruling class with military support. Russian later did succeed at overthrown their government with military support.