It is precisely a war aim both stated and implied. Stop it RD.
Whether you believe his speech or not is up to you but it is out there. My point is there is a lot out there having to do with Putin's ideas on NATO, countries formerly in the USSR, Putin's definition of sovereignty, and the protection of Russia etc. It's these things along with the Ukraine invation that have had a profound effect on former members of the Soviet Union and why they've been tooling up.
Occupying "might" result in an end to democratic governance and autonomy? You mean there's a chance Russia would allow Ukraine to join NATO even during occupation?
Yeah, an exhausted and depleted Ukraine will result from this war but it's the price for their freedom from Kremlin rule, unfortunately, hopefully. Do you want them to stop fighting?