Are you seriously calling a populist uprising a "US backed coup", implying the US had a hand in it, simply because the US ideologically supported their goals?
NATO expansion is not a justification for invading another country, especially a non-NATO one. Ukraine has the right to self-determination and freedom to associate with whomever they want, and Russia doesn't get to tell them who they can or can't be friends with.
I can only assume based on this that you philosophically support the Bay of Pigs operation, as the US saw Soviet expansion near them as a threat.
Putin didnt make his move on Crimea because he was trying to defend Russia, he did it because he knew that his plans to reassimilate Ukraine were threatened by the new Ukranian government. And the 2022 expansion of the invasion just proves that.