Your post is so fucking full of lies...
First of all, the transfer made no sense. Crimea has NEVER been a Ukrainian territory.
Second, at the time of transfer Crimea had been a USSR tourist hub, well known throughout the country and with a good infrastructure. Billions of Soviet roubles were spent to construct water supply and build reliable infrastructure on the Crimean peninsula.
Third, Ukraine's population has pretty much recovered by the time of the Crimean transfer. It was more deeply damaged by the WWII than by Stalin's holodomor.
And yes, if Kuban' wants to return to Ukraine then I have no objections. But having been in Kuban' too many times to count - their citizens would riot if anybody tried to give their land to Ukraine.