All wrong
Putin negotiated not once but twice. He not only negotiated but signed agreements. They are called Minsk 1 and 2. Since their signing not a single obligation was fulfilled by Ukraine. Putin has never said he wants to restore Soviet Union. Even you shouldn't be that brainwashed since it is obvious that many ex USSR territories and countries are now in Nato and EU. Even in this conflict, it is completely false that he doesn't want to negotiate, they held 2 negotiations so far, with another one incoming.
His demands were never Ukraine giving up sovereignty, he specifically mentioned his 4 demands, none of which is occupation. It was always Nato fault, as Noam Chomsky said. Every living thing with a functional brain cell understood that putting Ukraine in Nato would mean deployment of offensive and nuclear weapons against Russia right on its border. They knowingly pursued this, moreover they supplied Ukraine with enormous amounts of offensive weapons since 2014 puppet governments. They contracted 11 biolabs sponsored by American DoD. They supported genocide of 14000 russians.
So what did you think the Russians would do? Wait and die?