Does Ukraine want to lose a bunch of their territory?
It already has, and not in the way you think. In 2013 Ukraine had a president unwilling to take an IMF deal, and opted for the Russian one. The maidan coup happened and now they have a president who does whatever the money men want.
Even now there's a website up for openly privatizing Ukraine, and the ultimate outcome in a NATO victory explicitly is going to be the privatization of the breadbasket of Europe.