It's a mistake for western companies to exit the Russian market ... imho. If you want the USSR back, this is one way to do it. Complete isolation. Punish the Russian people for something they really had nothing to do with. Create anti-western sentiment. They knew it all along. Hello USSR.
What is a better alternative? maybe the US can bomb Ukraine so that Russian mothers don’t lose their sons to a war that satisfies Putin’s ego? or maybe the US can send money to Russia to pay for better tires on their trucks? or maybe the US can launch air strikes on Russian cities like Russia is launching on Ukrainian cities.
The USSR was 15 republics not Russia on its own. Re-creating the USSR is exactly what most of the countries that were in it are now trying to avoid. Putin has crafted over 20 years a misinformation sphere that most Russians are caught up in. Trump is an amateur by Putin standards. Something has to get through to them that all is not right. If they sieze the assets of the western companies preventing them from returning they repeat the same mistake they made in 1916 and it took decades to get investors to risk it again.