It’s a meme (in Russian ‘leftist’ social media) quote from a speech by Putin in Feb 22 right before he invaded. About how Ukraine is a fake country created by the foolish utopian Bolsheviks who used declarations of self determination as empty slogans to gain initial support. And then Stalin built a normal centralized state but didn’t bother changing the utopian “confederative” wording.
So now Putin is forced to fix Stalin’s mistake, put Ukraine through decommunisation and go back (presumably to how it was in the Russian empire) before all this communist nonsense.
Here’s the full speech if you’re interested https://web.archive.org/web/20220224052445/http://kremlin.ru/events/president/news/67828