The only actual Russian-majority area of the country is Crimea, and that has been annexed. You could talk of "Russian-majority" areas, but they, still, have Ukrainian majorities.
^^ This.
Russia invading the whole of Ukraine is no more likely than the US invading Venezuela, so yeah, not something we have to think about in the near future.
That means, you believe US invasion of Venezuela is all but imminent.
According to you, a full scale Russian invasion of Ukraine (and not only Ukraine) has been imminent since 2014. In fact, it should have already escalated to WWIII by now...