MLs organizing have established numerous socialist states, and have effectively organized anti-imperialist and decolonial movements around the world. I never said what I do on Lemmy is "organizing," that would be absurd.
As for vanguards, no, they are based on the idea that each class produces its own intellectuals, and therefore organizing them and bringing the working classes up theoretically and uniting in an all-sided political struggle is the way to establish socialism. Monarchism is entirely different, and was based on divine right with no accountability.