The idea of this being an issue of western vs. Chinese culture has been patently refuted in this thread, not sure why some still cling to it.
(By the way,this dichotomy Chinese vs. western culture is one of the most useless concepts that is still pushed all over the place, has very few explanatory powers, and raises more questions than it answers. It isn't much better than mumbling-dude, stuff is different in different places )
I guess some hold this view because they believe it respects diversity, and asks us to be compassionate to different people. But it ends up as a denial of human commonality. Poop smells bad to everyone, no matter what the culture, it really does, it is not subjective.
The irony is that culturizing stupid behavior and saying it is just "different", is an insult to Kunming people. It says that current day mores can't be improved upon, that they think themselves separate, can't accept criticism, are all alike, and are incapable of change. It is patronizing and denies their adulthood.
It actually goes further than this, and just totally papers over the diversity it is supposed to promote.
For example, if these are "Chinese ways" that should be respected, then what of my local Kunming friends who are annoyed by these "ways" when they walk around with me? Are they not Chinese? Not Kunmingers?
I bet if you did a poll and asked Kunmingers if they thought prolonged and daily staring, shouting laowai on the street, etc. is inconsiderate behavior -more than 1/2 would say, perhaps even a large majority would say, yes it is. Such people are fully Chinese and fully local. What about THEIR ways?