The Russo-Ukrainian War is about forcing Ukraine to be neutral to NATO, and resolving the conflict between Kiev and the Donetsk and Luhanks People's Republics that requested Russian support after the Minsk agreements fell through due to Ukraine failing to keep up their end of the bargain. It isn't an imperialist war, the goal is not expropriation of wealth, it's to keep NATO out of the main path by which Russia has historically been invaded from the ground, such as in World War II by Nazi Germany.
Russia is not worthy of critical support just because "west bad." Russia can't imperialize countries like the west has. It tried, back when Putin requested to join NATO 2 decades ago, but Russia was denied because the Nationalists in Russia didn't want to open their markets up to foreign plunder like in the 90s. As a consequence, Russia is forced to ally with the anti-imperialist countries, largely made up of countries in the Global South and socialist countries. The Sahel States, for example, are turning to Russia and the PRC as an alternative to western plunder, because Russia physically cannot imperialize in the same way the west does. It fundamentally lacks the ability to export vast amounts of capital and outsource production.
If you're going to call leftists "fake," then you should at least do the due dilligence to familiarize yourself with the Marxist analysis of imperialism.