I'm Russian myself, and I think Russia is a Western (white European) colonial empire, and the largest one in terms of the sheer number of peoples and amount of territory it still occupies. Just look at the map of its administrative regions.
And yes, it is indeed opposed to other Western powers. That isn't new - at the height of colonialism, European colonial powers were constantly fighting each other. That didn't make any of them any less Western.
What do you think Russia is?