It isn’t a matter of being outgunned, NATO has been outgunned in terms of numbers all along. Its a question of a will to fight. I doubt there is a will to fight among western Europeans, particularly for the Baltic states. And if the Russians use the same strategy they used in Ukraine, sending in the army while denying they are sending in the army, the west will be completely unmanned. They will wring their hands but they will not fight.
The Russians will then be a liberating army for the few non Muslims left alive.
The Russians will be fully justified in the attack.
True...for the most part. I wouldn't expect the Germans or the Brits or, for that matter, the U.S. to raise a finger.
However, I would also expect the Poles to respond forcefully -- likely the Czechs and the Hungarians, also.
These Eastern European states have an intimate knowledge of Russian aggression and realize they would be next...