The post specified that the stock market going to zero implies some sort of catastrophic event leading to the dissolution of the US government and economic system - which is exactly what happened in Russia and China. As much as people whine about the red scare, a communist revolution in the US is very unlikely.
With regards to the last point, a close parallel would be to ask at what happened to people exposed to Russian stocks prior to February 2022. While not going down to zero, suddenly being cut out of the global market has a similar effect.
With regards to the last point, a close parallel would be to ask at what happened to people exposed to Russian stocks prior to February 2022. While not going down to zero, suddenly being cut out of the global market has a similar effect.