A overly simplistic comparison.
A lead up to the 2014 Ukranian revolution, Ukraine was ripe with corruption and mismanagement. The people of Ukraine wanted closer ties with the EU, Yanukovych chose to go with the 15 billion dollar rom Putin. The people rejected that deal, and in turn took to the streets. On the request of Putin, Yanukovych started harsh crackdowns on his people. Once the state uses violence against its own people, it looses al legitamcy. So your "unconstitutional coup", is pretty much meaningless.
Next, where did you come up with a minority being responsible for the ouster of Yanukovych, seems like you just made that up.