You say this is because of the failure of liberal democracy and capitalism but your citation says it was most likely caused by:
"rising poverty rates, unemployment, financial insecurity, and corruption"
Perhaps the Russian state should focus on addressing those issues instead of invading and trying to destabilise other countries.
> Not trying to shill or defend Russia's invasion of Crimea or Ukraine here, but if you just look at the map of a formerly hostile alliance moving steadily eastward and you were Russia, would you really just throw up your hands and say 'yes, that is how the world should be' and tacitly accept it?
Here you describe NATO as a hostile force but it's clear that the countries joining NATO were wise to do so as a defense against a hostile Russia.