Thailand won't die on the scale of China IMHO. But, the communist party that rules Thailand (or Military rule) has gone full on with China. So, if China keeps falling Thailand will follow at a slower rate. Problem is the western expats that bought into retiring in Thailand will be hit with ever increasing hardships, and anti western sentiment. Unfortunately for the expats in Thailand the world is changing. And, they got caught up in the rapid change in SE Asia. 5-10 years at best before the bottom drops out completely for expats.
This started several years ago and, it has and will get worse very fast now. Smart money got out of Thailand a few years ago. Now, too late for most.