Well Germany and US are both parts of NATO and Mexico isn’t.
If Mexico attacks US, Germany should help US.
But it’s a moot point. NATO is not an economic block and Russia is not attacking Germany.
NATO was established to counter Warsaw Pact which was a military organization more powerful than West European militaries.
Warsaw Pact is no more.
You say there is anti-Western propaganda in Russa but yourself are pushing the line as if Russia is an enemy and mulling hostile steps like interfering in legit trade.
Something is wrong about it.
So we can bring all the troops home from NATO?
How will be Poles feel about that? They love their history when you guys and the Russians get going.
Again, if NATO exists, you can’t treat this as a simple commercial transaction and the bigger issue of Whither NATO? must be addressed.
If the answer is Disband NATO, and it becomes a simple commercial transaction, then so be it. But it isn’t simple right now.
And there are plenty of examples of Russians being obnoxious out in the world. Fortunately they can’t afford much obnoxiousness right now.