Look, I understand being cynical about things because of conditions at home, but this war is just war of defense for Ukraine, and with the showing of the Russian military so far, Ukraine retaking Crimea and getting the 2014 borders back is doable, but not as a 'quick' affair.
As for the sanctions being ineffective, you forget that Russia is now shut out of the Taiwanese chip market, and except for a few nations buying the oil, the rest of Russia's economy, domestic and international, is in the absolute shitter.
The sanctions have made it so Russia cannot replace the losses they sustain, and have no domestic logistics trial for a lot of their gear anymore. Where as NATO and the West do have teh logistics trial to sustain Ukraine in the slog to come.
And make no mistake, it will be a slog to retake the rest of Ukraine from Moscow's forces, but it can be done if the West continues to support Ukraine. It is logistics, not fancy battlefield tactics, that win wars, and the West/Ukraine have a much longer and deeper armory than Russia does now.
And do not forget that the domestic political scene in Russia is not blowing in Putin's favor anymore, and it's more a matter of who ends up replacing him in either a 'retirement for health reasons' coup or straight assassination attempt from the inside.
You need to realize that no amount of domestic issues here are going to make Ukrainian's stop defending their lands, and no amount of bullshit here justifies anything Putin has done or allowed his military to do since the tanks rolled through Chernobyl.