Is your argument that it would be really bad if it was true, therefore it's not going to be true? It would be really bad if I got cancer, but I don't respond to that by refusing to think rationally about it.
If anything, you should be stockpiling food and guns. Or, who knows, maybe GPUs and DRAM. Physical possession of goods, not paper ownership of the same.
Debt only exists by the mutual belief of debtors and debtees that the alternative would be worse.