Look, I get this. I'm not saying it's not a little bit tricky to depose a despot once he's got his grip on power.
But I see Westerners go to places that are culturally different, and ignore all those differences, and assume that the only reason the government isn't "non-authoritarian" is because the population need help deposing a despot. Sometimes it's not that. In Myanmar it is totally that, and we should be doing something, because the army are shooting civilians every day. In Cambodia at the moment, not. In China, probably not.
In Cambodia I was a CEO. Khmer culture means that you never contradict your boss. I had some really candid conversations with colleagues that I knew well, and who knew me well, I'd call them friends. They would still never contradict me, even if they knew I was wrong, and knew that I knew I was wrong. It's a different culture. You do not question authority there. That's not because authority will punish you, but because (as far as I get it as an outsider) social harmony depends on social stratification, and social stratification means not questioning those above you. It all sounds problematic to westerners, who go there and try and impose western ideas of justice, free thought and free speech. But they just come off as White Saviours, tone deaf to thousands of years of Khmer culture.
In Cambodia all this lead to the Khmer Rouge and a genocide. I see lots of parallels with what's happening in Myanmar. I think there comes a point where we do have to step in and say "I know you are an authoritarian culture, but this is too far, you're shooting civilians". Don't forget, this is Myanmar people enlisted in the military who are shooting other Myanmar people. The same was true in Cambodia - a lot of the trauma of the genocide was "how could we do this to ourselves?". It's a very complex situation. There's a huge difference between this and China.
I don't know enough about the situation in Belarus to comment. I don't trust Western media enough to present an unbiased view of it, and I don't know any Belarus folks to give me their view. I'd like to go visit - I hear it's beautiful there. But pandemic.