Therefore, residents of Guangdong are prohibited from emigrating to Taiwan. "According to Fan Chen-chien, an assistant professor at the Taipei College of Business, the Qing general had been frustrated for two decades by the Zheng family's able Hakka assistants, so when he finally managed to over come them, his suppression of the Hakkas was motivated by a desire for revenge.
身為客家人的台北商專副教授范振乾認為，施琅吃盡鄭氏家族兩位客家部將的虧，因此在擊敗鄭經後，對粵客展開報復，刻意打壓客家族群。