These shortages are also primarily due to behavioral shifts which redundancy will not correct. Demand for suburban housing skyrocketed since no one wanted to live in the city. Services spending shifted to goods. Global travel halted. Everyone wanted to redo their flooring in the same 3 months. Everyone stopped buying cars, and now everyone wants one to get out of the house or for that new home they bought during the pandemic. I mean, you could pay up to hedge against all of these, but I'm pretty sure 40 years of hedging would have not been a wise investment.
Now I do agree with creating redundancies for critical goods as a hedge against geopolitical tensions, but that's a different story.