China is faltering, not collapsing. Evergrande will probably not be a large problem as far as foreign contagion because its debt is not widely held around the world. China already has a workaround which will break the Evergrande debt into small chunks which will be spread amongst the provinces.
Is Evergrande the pebble rolling down a mountain that triggers the landslide.
Understanding China . . . .
Why 94% of China Lives East of This Line
https://www.youtube.com/watch?v=kVaBlat06Sw