I'm sorry If I'm splitting hairs but i think it's very important to try to articulate an real proletarian line that opposes both NATO and Russia as two poles of Imperialist domination and so we have to resist simple narratives,
Fascists are present in basically every state in the west at this point: the US, UK, France, fascists are part of the state but have yet to achieve complete control. Relatively speaking I think the outright fascists may be smaller in Ukraine, but what they've done, cleverly, is dig in and become essential parts of the coalition, like you say, so there power may be limited now, but they will bide their time for when it becomes more opportune.
Like if Russia were to be decisively expelled from Ukraine, there.may well be ethnic cleansing in the donbass, where supposed russian collaborators are rounded up and killed. Another real danger NATOist cheerleaders refuse to acknowledge.