asians in general are tidy and quiet and respectful.
when they riot and protest they clean up their mess afterwards
@Mowgli won in life
You gotta get out more if you think that represents Asia in general.
The most trashed streets you will ever see are in Asia. The most polluted air is in Asia. The most polluted rivers (in terms of straight trash floating in them) are in Asia. Chinese and Indian tourists have reputations for being rude and obnoxious and they're most of the population of Asia. Lots of Asians (Chinese, Vietnamese, Filipinos, Indians) talk louder than most Americans.
Google "Why are Chinese tourists so rude?" or "Why do Indians talk so loud?" or "Why is [insert Asian country] so polluted?" or "So covered in trash?"
A lot of American stereotypes about Asians are related to Japanese culture which is a huge outlier in Asia, or Asian nerds who come here as doctors/professors/scientists/programmers and don't have anything to do with the average Asian person.