Non-nuclear Ukraine was never a threat to nuclear-armed Russia -- Russia with 30 times the land area and three times the population.
A change in Ukraine's government is no more a casus belli than would be a change in Mexico's or Canada's governments.
Further, Ukraine has had eight presidential elections, including two since the events of 2014.
Ukraine's current government is not the result of a western-engineered coup.
Nextrush: "...blame Obama for 2014 and Biden in 2022 say it was the Democrats fault."
Of course it's the Democrats' fault -- it always is.
Both Obama and Biden were/are weak and weakness provokes rulers like Putin.
But that is no reason to say Ukrainians, Europeans or Americans must now lay down, roll over and do whatever the Russian dictator demands.
Regardless of our Democrats' provocative weakness, the West must stand strong against Putin, or in very short order the world will be ruled over by such men as Putin & Xi.
Freedom is not free.
The aggressive NATO expansion to the East started during the Clinton Administration as pointed out by Peter Hitchens who reported from Washington during the Clinton years.
George Kennan the author of “Containment” during the Cold War objected to the policy change.
The US has participated in coups to overthrow other governments John Bolton in essence admitted it in an interview earlier this year.
Russia saw NATO creeping eastward too far eastward for its comfort then the Ukraine coup of 2014.