Setting aside for a moment the fact that this is all theater.
Should/would the US sit idly by while China or Russia funded the overthrow of the Canadian or Mexican governments by sworn enemies of the US?
There are no “good” guys in this situation, but I would say that it appears the Russian’s have fired less shots in their take over of Crimea, than were fired in that Kiev square.
Hey, atleast the US Gov. is being consistant about secession.