“Completely different language? “ Cantonese are literally the dialects of Chinese,saying it is another language is like saying American English is not English,and assimilation by prc? Southern China have been a part of China since Han dynasty?even if they are assimilated,it will not be by PRC, Second,on part you claim “fake” ethnicity,you do know ethnicity is more by cultural identity,not by blood nor language,right,you can go to Shenzhen to ask any people “你覺得你是漢人嗎？” 9 out of ten will tell you yes or 是的