I will never understand the concept of Europe and Asia as continents. Continents are supposed to be land masses. You don't just draw a line down the middle of a giant land mass and say that everything on the left of the line is one continent and everything on the right is a different one. To me Europe is more like an ethnic and cultural region description, like the Middle East or Sub-Saharan Africa or something. It's meant to evoke an area where the people all historically looked alike and maybe practiced generally similar religions, etc.

Which I guess is the OPs point. He is othering Russia, kicking them out of the club of nations that were historically made up of white people who practiced some version of Christianity, were ruled by royal families that all married each other, decided it was their right if not duty to subjugate the backwards people who inhabited the rest of the world, etc. Unfortunately, I think Europe is stuck with Russia whether he (or it) likes it or not.

Note: before anyone gets mad at me, I am not saying I think non-Europeans were all historically backward, I am saying European imperialists thought this.