Again I can't speak for him in particular but personally I think Russia could always be brought closer. Consider for example there's minimal military integration in terms of platforms, no consistent, dominating mechanism for yuan cross border trades etc. Not to mention, Russia has mostly failed at sharing in China's growth as well as ideology.
It is not interesting to China what the west thinks about them, because the west is an enemy that will either be contained or destroyed. It is however of great interest that Russia stays in a type of mutual dependency.
Look at for example America and Germany. Germans are not going over the border to rape or kill Americans and of course like you say China also has no problem at all with Russian immigrants or Russians at home creating hate crimes. But nonetheless, US ensures that the Germans are curtailed in their potential to deviate from the bloc leader.
Unlike US, China will not demand allies to do anything that they aren't comfortable with just to further the homeland's ambition. However, that doesn't mean that allies shouldn't be prepared with the right mindset and right amount of modernization so that when the time comes, they will act in China's defense out of their own volition. For that, every nativist or pro west Russian power broker that is purged, is a (small) victory for China.
