Any people have a right to replace their governmnet, America by a simple vote.
Next comes the problem, forming a government that can rule.
As Putin pointed out, they were never a Nation, they were an administrative district of the USSR, made up of part Russia, part Poland, Hungary, Romania. They speak about four languages.
The west overthrew the government, the Russian speaking east supported it. That split, plus the Russian navel base at Crimea, the discount price they have been getting on gas, a third off the market price, which they still cannot pay, and other Russian supports that have held them up, where their own actions would have them eating rats and bugs by now. A new Black Sea pipeline bypasses them for delivering gas to Europe.
Along the border with Moldovia, is Transnitsia, no one reconizes it, but it is not only Russian speaking, but they miss Stalin.
The west that overthrew the government cannot rule the country, without the support of the rest, and they do not have it. The old leader supported Russia, because more than half the vote was Russian speakers.
A new election is going to be dominated by the Russian vote.
The old agreement was power sharing between groups, till one faction overthrew it. The new system will be majority rule, and that is Russian. Those who overthrew the last will be excluded.
The new economic system will be the Russian speakers having access to Russian gas and money, and the rest can eat rats and bugs, unless the US/EU feeds them. They can buy gas at market, for cash.
Like Georgia, that used to sell almost all of their wine to Russia, and now are barred from that market.
None of the other countries, Belarus, and others are going to give them credit, so where will they get cars, trucks, tractors, and spare parts for Russian machines?
They have serious debt and high interest.
They needed the $15 Billion Russia was going to supply, just to stay afloat, and now they need a lot more.
They are going to defaullt on their Euro Bond debt, plus need as much again to survive.
These are the people with some of the richest wheat lands, where 30 million died in a famine.
They will have no one to blame but themselves.