If the Cantos are really viets n not cina. All the more reason for Cantonese to go independent. That way with its own language. It can n should middle chinese.
They can certainly do so. It's every people's right to choose their own path.
Middle Chinese as used by the Tang court has literally been extinct for hundreds of years. I don't even know if they can revive it with the info available.
The predecessor to modern Cantonese came about around 200AD. Much older than Mandarin which came about 1000 years later at least. It's rise to prestige dialect of Canton province was around 600AD.
N the fuckkas n fuckeins can all be expelled to fuckein province. Cantos don't need parasites. Fuckkas are snakes where even fuckeins don't like them
I like everybody just fine. Until they personally prove otherwise. Hating an entire group is not a good recipe for happiness.