Liberal democracy is the weird historical aberration, I'm not sure that claims made from its perspective are as normative as you think. Given some political trends we're observing, and its poor overall track record in dealing with relatively simple crises (COVID), it's still too early to tell whether or not it can survive in the long term.
Seems like Russia feels it can get away with anything by threatening thermonuclear war. At some point, a line should be drawn.
After all, almost all countries had kings and dictators at some point, and eventually some got rid of them.
[1] Interestingly the French Declaration of the Rights of Man from 1789 includes the right of "resistance to oppression"
IMO we have probably just got rid of Putin and brought back Russian Communism.
Then you will have a Communist block with China that instantly has nuclear parity with the West.
Anyone with savings in rubles just had their savings turned to dust. I think we underestimate the power of financial weapons in the 21st century.