Anti-Russia in what way? Against the people? No. Against Russian culture? No. Against policies of the Russian government? Yes.
The Russian Federation is a capitalist country, proudly admitted by President Putin. So its endeavors should be highly scrutinized the way we would with any capitalist nation like the US, etc. You should take into account history of the region, especially since the fall of the USSR, and the actions of outside meddlers like the US/NATO/EU. Ultimately though, we should be (as people "on the left") against any wars that don't advance the goals of the proletariat. So, for this reason, the principled stance is to call for an immediate end to hostilities in Ukraine/Russia and sign a peace agreement. It's also important that people "on the left" oppose NATO expansion and any US meddling in Ukraine that led to this current war.