Vladimir Ilyich Lenin promised the same thing in 1917.
A worldwide revolution of the proletariat.
The entire globe would be socialist with no countries, no religion, no possessions, no greed and no hunger. The world would live as one.
Sounds like the EU.
Not all socialists who traveled to Russia to see Lenin and the new socialist society came away enamored. H.G. Wells (no conservative theorist) after an interview with Lenin, came away thinking that Lenin was off his rocker. Unfortunately, Wells's view of Lenin was not shared by most foreign, socialist visitors.