because of course Russia is going to be evaluating the threat from Europe as if it isn't in addition to the threat posed by the United States. Maybe instead of being astonished you should rethink your interpretation.
OK, so we have the Russian perspective: the potential for a future joint attack by America and Europe on Russia. Which has never happened or been credibly threatened, but fine, we can consider it as a feared outcome.
And then we have the European perspective: the potential for an attack by Russia on Europe. Which has already happened
over and over and over again. And now there is no security guarantee from America, so they look to bolstering their own capabilities for defence. There's no alternative that will guarantee security, and the threat is far more real-- it's actually happened and is happening now.
What do you propose, exactly? That we must respect Russia's fears of some speculative future attack, and allow it to pre-emptively occupy other countries to mitigate that fear (!!!) ....but we simultaneously cannot respect Europe's need to defend against invasion--
even when it's happening? The double standard is so transparent, how you will afford some states the right of independent action and self-determination, but will not afford those same rights to others-- and are even happy to see the former ride roughshod over the latter. This is imperialism.