Most Ukrainians are forced to support Russia because the way how Zelensky "defends" Ukraine by freeing prisoners and giving advice to fight with Molotov cocktails.
AFAICS, it's all the same to him: If he were dreaming only of reviving the Tsarist (why "pre-"?) Russian Empire and not the Soviet Union, he'd hardly have gone on the record saying "the fall of the Soviet Union was the greatest geopolitical tragedy of thetwentieth century".