@bobsal u1553115,
"(Putin) said that Lenin and his government whimsically drew borders between
parts of the U.S.S.R., placing Donbass in the Ukraine..."
Revisionist nonsense. The Ukrainian Soviet Socialist Republic didn't join the U.S.S.R. until December 30 1922. Donbass was incorporated into the Ukrainian Soviet Republic in March of 1918. After an intermediate period of German occupation followed by the Soviet-Polish War, its status as part of Ukrainian territory was confirmed by the Peace of Riga (1921) which was attended by Russian, Ukrainian, and Polish delegates.
https://en.m.wikipedia.org/wiki/Donetsk%E2%80%93Krivoy_Rog_Soviet_Republic
Put quite simply, the U.S.S.R did not even exist at the time that the borders of Ukraine (including Donbass) were established. And as part of a federated system of states, Lenin would not have had the authority to determine Ukrainian territorial borders even if it had been part of the U.S.S.R. at the time. Furthermore, on December 13 1922 Lenin suffered two attacks of thrombosis of the brain, resulting in a withdrawal from political life for a time.
Finally, note that 84 percent of both the Donetsk and Luhansk oblasts (these constituting the Donbass) voted to secede from the Soviet Union as part of an independent Ukraine:
https://en.m.wikipedia.org/wiki/Ukrainian_independence_referendum,_1991