If Europe cared about Ukraine they’d ban Russian oil too. However, when you put a teenage autistic Swedish girl in as Europe’s energy czar and in charge of Europe’s energy policy then shut down nuclear plants and become dependent on authoritarian Russian oil this is part of what you get. Or least when you have power hungry people willing to use that girl for their own ends to control the world. It is crazy to most people except people who don’t like freedom.
It is meaningless theater to Russia without the EU and could be a disaster for the US domestically.
Is it really worth war with Russia to do something that Europe won’t and that may have little to no impact on Russia?