Agreed. Kind of like the US and NATO (or some of them, not many) invading Iraq on made-up reasons.
The whole of this thread is generating more heat than light at the moment.
There is too much value attached to the materialistic reasons and effects for what happened to the Soviets and their "satellites" which in effect were slave countries to the Soviets/Russia, and not enough attention is paid to the psychological and historical reasons . Believe me, as one who was born and bred in one of those countries, they were willing if necessary to suffer any kind of materialistic loss if it meant getting rid of the hated Russians, Tsarist, Communist or Democratic (as Russia briefly was in February to November 1917) and the hated Communists of any nationality. The reasons for that are historical and I will not go into them here. Suffice it to say that the "Baltics", Poland and Hungary had a history of being subjugated by military force to the Russians, unlike Rumania, Bulgaria and Serbia who were liberated or made safe from savage Turkish rule by the same Russian military force.
All that said, once Yeltsyn and Putin admitted to all Russian sins and mistakes, and those East European countries were free, and Russia was on the way to being democratic, more or less, the US ,and NATO obediently following the US lead, continued to treat Russia as the enemy, right up to the present. In its turn the mere possibility of Ukraine joining the EU and later becoming a member of NATO, however unlikely that possibility was, was psychologically unacceptable to Putin and the vast majority of Russians.
Imperial Russia fought for 150 years to capture South Russia and the Crimea from the Turks and defended the Crimea, or tried to, from British, French and Turkish forces in the Criimean War, and the Russia of the Communist Soviet Empire defended and then recaptured the Crimea from the Germans (these days labelled as "the Nazis") in WW II. And the thought of Sebestopol in NATO hands and NATO and American troops so close to Stalingrad of WW II fame, now renamed as Volgograd,however unlikely or distant that possibility, was simply psychologically/historically unacceptable and, for Russia, worth any risk of conflict or opprobrium in the international field, and any economical sacrifice, to prevent that happening. And there we are.
Had the US/NATO policy and attitude been different from 1990 onwards, the whole story might have been different. But those are "might have beens" and hot air is wasted air.