It's Maths.
It's also 'Simple Maths' to know that if we keep letting Putin do what he wants he WILL eventually attack the Baltics (or some other NATO state) that will either collapse NATO or bring about a war between Russia and NATO.
History does repeat itself you know.
We're actually at undeclarrd war with them, and have been for a long while with Cyber attacks, Jamming Commercial GPS around Kaliningrad etc. I know, from my companies security logs, that Russian, Chinese, North Korean and Iranian organisations try to break in every day.
So stand-up to them now, or let them win in Ukraine and have to fight them later. It's pretty much the same time frame too.
So stop talking bollocks.