A small socialist group Left 21 emerged after the failure of the massive anti-Guangzhou–Shenzhen–Hong Kong Express Rail Link (XRL) movements, as the leftist faction disagreed with the lack of the class discourse in the movement leadership.
Kelompok kecil sosialis, Kiri 21, muncul setelah kegagalan gerakan masif anti-Guangzhou–Shenzhen–Hong Kong Express Rail Link (XRL), karena faksi sayap kiri tidak setuju dengan kekurangan diskursus kelas dalam kepemimpinan gerakan.