You're not suggesting NATO saying "sure let's talk about membership" and Russia INVADING a country is the same but different "magnitude"?

It's up to Ukraine if they want to pursue NATO membership or any other agreement with any country or organization.

Russia has no say. It's not a negotiation between NATO and Russia. Russia isn't at the table. They can pine for old USSR glory all they want but nobody else wants that.

And the way Putin's been killing journalists and dissidents (in the UK no less), raiding the treasury, annexing Crimea, and other nonsense, I don't see them being invited to many negotiations in the future.