They want to "own" the state? No, that's false. Ukraine is closer to Russia than Cuba is to America, so of course they have an interest in what goes on there, just as we threatened the world with war in 1962 when the Soviet Union tried to put missiles on Cuba. Were we trying to "own" Cuba?
At least Russia's concerns are located on their very own doorstep. We go to a completely different continent when we invade sovereign nations (e.g. Iraq).
That's the word they use, (in Russian of course).
"It cannot be stressed strongly enough that without Ukraine, Russia ceases to be an empire, but with Ukraine suborned and then subordinated, Russia automatically becomes an empire."
Zbigniew Brzezinski
Alexander Dugin-"This war is about Russia becoming empire again, with Ukraine in its zone of control"
Alexander Dugin-This War is About Russia Becoming Empire Again