People made the same argument in 1936.
Look where that got us.
https://m.youtube.com/watch?v=oyX2kXeFUlo
In 1936 Germany had the ABILITY to take all of Europe, and much of the world.
In 2022 Russia does not have the ability to take a single country from NATO, much less all of them.
The threats are not even close.
That invalidates the silly domino argument.