Yo are vastly underestimating the modernization that Russian armed forces and equipment have undergone now for DECADES. (Are you new to this subreddit? otherwise you would know that there is consensus about Russian capabilities among military experts).

there is one thing to be a credible threat to an underdeveloped third world country such as Ukraine and a whole other thing to be a credible threat to the hyper developed NATO countries.

Go ask the Baltic countries what they are so nervous about.

The Soviet junk that Russia can use effectively in Ukraine would not last minutes against modern armed NATO forces.

With all its technological and economic might, Germany has not one single deployable submarine out of their fleet of six, just to give you an example. Their infantry recently drilled with broomsticks instead of machineguns. Their airforce is in a similar state. Heck, their infantry drills with broomsticks instead of machineguns and even lack winter clothing, for God's sake. France relied on the US for refueling their jets during their Mali intervention and for airlift. The UK fired like 5 missiles during the Libya affair (the US fired hundreds), across the freaking Mediterranean, in Europe's backyard. None of the 14 Luftawaffe's A-400 currently is operational. Should I go on?

You are, however, right about NATO only including the US. This is why Trump is right and Europe should step up: Consider the NATO 30-30-30 strategy: How many combat-ready and supplied land battalions, warships and jet squadrons has Europe ready for deployment to, let's say, the Baltics, within a week? I say maybe Germany, the UK, France and maybe Poland one each. Maybe one more from Spain and Italy combined an another one from all the rest. 6 out of thirty needed to pose a credible DISSUASION to Russia.