a. there are no local products anymore (tvs,hifi,cameras,etc)
b. if there are any they cost 10 times the price of Chinese
c. whole companies are shipped overseas everyday
d. cheap labor is imported into the US by the tens of millions, they only buy Chinese
e. US govt gives incentives to companies to relocate overseas
Your solution,Buy Local, will not work.
The Crash will come when there are no more manufacturing
jobs left. Then there will be nothing to support the service
sector jobs.