Ukrainism was created by Poles and Austrians to be used as a weapon against Russia. In fact it was the anxiety about Russophile sentiment in Halychyna that spurred the Austirian support for the Ukrainian idea, which is a complete fabrication by the way. Since WWI, whatever the power in Moscow is repeatedly forced to exterminate the threat. Somehow the Ukrainian nationalists always end up fighting Russia. Because the latter is what they were invented to do…

Whether we are talking about the Sichovi Streltsi, the SS Halychyna and UPA, or its current iteration in the form of the the Right Sector and Azov Battalion, Russia (or Russia in the form of USSR, which posed as anti-Russian) is forced time and time again to exterminate these vermin.

Source

The question is, will Russia be OK with keeping a land bridge to Crimea? Or will there be a programme of denazification following the collapse of the Ukrainian defense in the East? I am not sure if the former is chosen that Russia will win a long term peace and would not have to fight the Ukrnazis again few decades later. The question is whether the Russian elite is aware of this, or whether Russia has enough strength to pull this off. Putin promised denazification and to undo Ukrainian statehood, so it remains to be seen…