It’s an answer in that I reacted to the event you were slyly trying to imply. The Ukrainians arrested the local leader of crimea and forced them to rewrite their laws to follow the Ukrainian constitution. When Russia took that region and Ukraine did nothing but yell, Russia had a much more solid argument in terms of it always being Russian land and wanting it returned.
They lost that veil of plausibility when they decided to go for the rest of Ukraine in their attempted blitz of Kyiv
But judging by downvotes someone here knows what happened at that date.