Ukrainians have basically been doing rope a dope with Russia for the past year or so, with offensive actions restricted to limited counterattacks as Russians wrack up disproportionate confirmed casualties. The result of Western support, of course is a Russian snailkrieg that'll conquer all of Ukraine, at its current averaged pace of advance over the duration of the war, in about 118 years, give or take. If we go by the more recent rate of daily advance for 2024, that would be ~150 years. Meanwhile, as is obvious to the Russian Central Bank and even the most ardent supporters of Putin, its economy is going up in flames in real time, and it surely doesn't have more than a century left in the tank.
And yes, aid or not, Ukraine is obviously a relatively anemic opponent compared to say US, China, or NATO whose only advantages versus Russia amount to superior tactics, leverage of drones, and technology through 2nd and 3rd rate, older Western gear; Russia has the edge on virtually all of the rest.
Further the 'full and awesome might of NATO', as in the entirety of the alliance aligned against a common opponent, has never yet been employed in a full scale national war. However, if you want to hold to the delusion that Russia in its current, obviously debilitated state would win (not force a de facto draw via MAD) a conventional offensive war with standing armies against all of NATO (as we are describing threats to the West) you are very welcome to such a ridiculous delusion; I won't indulge you any further.
The notion that Russia is even remotely competitive with China for top threat to the West is blatantly and completely absurd.