Regardless what the demands were they were not protesting against Nepali govt(a peaceful protest is a peaceful protest reagardless of what the demands are). They just wanted to protest peacefully in front of the Chinese Embassy. Had they let them do that there would not have been bloodshed or rioting. That is my point.

If Madhesi wanna go protest about Nepal in front in America, Russia, or Timbucktoo might not be fine with us but that is US, Russia, or Timbucktoo's business.