One US guy published a book - The Callapse of China -many years ago & he kept saying the same thing in recent years. But it never happened. There are a lot of anti-China, so-called scholars who are paid by political groups to write anti China articles & books. They are just intellectual prostitutes.
The world already has seen what happened to the Soviet Union. The Western countires pushed them to abandon their system & the country callapsed. But when Russian was in finacial trouble, the West abandoned it & forced Russian to pay back the loan.
China's achievement since 1989 has proofed that the Chinese government did the right thing for China. Remember China belongs to the majority of Chinese people, not a few elites or worst foreigners.