There is already unequal treatment within China. The Hukou system itself discriminates against rural and inner provincial folks, preventing them from accessing the social and healthcare benefits folks enjoy in first tier cities. Meanwhile, ethnic minorities with the greatest separatist tendencies also enjoy better social welfare subsidies and college entrance chances than majourity of PRC citizens. My home city of HKSAR is EXTREMELY privileged since we barely pay any direct tax to the Central Government under the One Country Two Systems, albeit we profit remarked from China’s foreign trade. Based on Orange Man’s philosophy, HK should have been heavily taxed by Beijing for “ripping off” the rest of China since 1997, not to mention the whole pre-2020 political dramas. Many Shanghainese also think like HKers with a sense of pro-west superiority over the majourity of “Chinese peasants,” but at least Shanghai municipal government invests millions in poorer provinces through the poverty alleviation program. So Shanghainese have some right to brag about their privileges and sense of pride because they paid for it.At the minimum overseas returnees must submit to all laws and not demand any special treatment.
Thus, before welcoming back overseas Chinese (especially those with different political and cultural values), maybe Beijing should deal with own systemic inequalities, especially structural mistreatment of citizens from inland provinces (excluding heavily subsidised minority regions). And just jettison the whole 56 nationalities bs of course. They were an outdated Soviet construction vulnerable to foreign interference anyway.