Thank you. You provided what I asked for. That's one hurdle. Let me then give you, what I consider further hurdles to argue that Russia was right to attack Ukraine on the basis of the justification off possible NATO
membership.
So now we have established that in 2008. Ukraine and NATO were talking about membership. So, first the question becomes. Can that be considered a serious possibility? Or at the very least be considered a serious possibility from the perspective of Russia. Considering 2008 was when it first got proposed and 2022 was when the invasion occurred it seems that the excuse is odd. What exactly changed over those FOURTEEN years to make that possibility so threatening?
Actually, the first proposals were a bit earlier.
Some milestones can be find there:
en.wikipedia.org
The last straw, as far as I know, was the visit of American B-52s in Ukrainian airspace in the fall of 2021.
Second, why is Ukraine NOT allowed to see to it's security concerns as they see fit but Russia is?
Mostly because Russia is a nuclear power, and Ukraine is not. If we want to avoid a nuclear war, then, of course, nuclear powers shouldn't create vital threats (directly or indirectly, nuclear or conventional) to each other.
Security concerns which are much, much, MUCH, more tangible then the vague notion that NATO threatens Russian security. Since it was RUSSIA not Ukraine who invaded and took territory in 2014 FROM UKRAINE.
That's you problem. It's not about territory at all. It's about people. And no, in 2014 Russia didn't take territories from Ukraine. Russia recognized independence of Crimean Republic, and then - rejoint with it. If NATO countries have right to recognize independence of Kosovo, then, of course, Russia have right to recognize independence of Crimean Republic, Donetsk People Republic, Lugansk People Republic, Kherson and Zaporoje regions.
Which brings me to hurdle 3. And a hurdle I alluded to. What's the actual threat of NATO?
Ask Serbia, Iraq, Syria, Libya, Afghanistan and many other states, invaded by the members of NATO.
The NATO charter says, and history shows that NATO membership does not provide a blank check for it's members to attack anyone. The only threat NATO poses is to those that DIRECTLY attacks one of it's members.
Did Serbia, Iraq, Afghanistan, Libya, Syria or anybody else directly attacked any of NATO countries?