If all countries under discussion ramped up to full war time economies, like Russia is already doing, the West would outproduce Russia by at least an order of magnitude, maybe even two.

Well, sure. But you may as well say "if all countries under discussion magically whisked an army of robot supersoldiers into existence, they'd outpace Russia's fighting ability by an order of magnitude." It's just a pipe dream that ignores the material reality of the entire situation. The countries under discussion can't ramp up to "full war time economies" because they've long ago outsourced nearly all of their production capacity. If right now, they dropped everything else in order to rebuild their productive forces (that they willingly and knowingly dismantled for the sake of finance capital profits and honestly to also prevent domestic labor from having the kind of leverage it used to have) then it would take well more than a decade to get back to the kind of productive capacity necessary to outproduce Russia the way you're talking about. And that's if we're being extremely generous. That's simply not going to happen for numerous reasons ranging from the greed of finance capital to plain old logistics.

This is the economic imbalance that "Putin knows." He has known it all along and never needed to undercut western support of Ukraine because of it. The waning support from the west is due to the fact that they're now realizing what a lost cause Ukraine truly is and that no NATO Wunderwaffen or boomeranging giga-sanctions are going to save them.

subversion of the political process via corrupt politicians, keeping the US and others in a state of hand-wringing and infighting

This is just silly. Putin does not have that kind of ability.

believed any of his own propaganda, he would already actually be at war with NATO (instead of just claiming to be and not actually touching any NATO territory), and the West would coalesce around the clear immediate threat and begin the war time economic ramp up.

Fantasy land. Cloud cuckoo. Complete failure to understand how geopolitics even begins to work in the age of nuclear powers, or even the meaning of the term proxy war, let alone the material circumstances of the countries you're talking about.