Well, it has been for the Ukrainians to decide. They have fought like hell to avoid being conquered by a foreign dictator that would destroy their country, their culture and the rape, torture and murder their own people.
> Which threats? Putin already decided that Ukrainian NATO membership is so important that he is willing to go to war over the issue if there is no political solution, he certainly expected sanctions and support from the West.
Which threats? I assure you that in the run-up to February 2022, there were some very serious phone calls and meetings between the USA State Department and the Russian Foreign Ministry. Just because that wasn't reported on the news doesn't mean it didn't happen. Often we try to find solutions to problems without it being a public announcement.