Not nonsense at all. There have been real threats to shipping such as Somali pirates, etc...
USA, Canada and numerous other countries ship things across the world all the time for economic benefits.
The West is so degraded and weak it can’t even keep the Suez Canal open.
Forget Nasser, Houthi terrorists have closed the Canal.
An economic system based on these sort of obvious failure points like shipping thru the Canal is bound to catastrophically fail.
Time to start making the stuff we buy, and buying the stuff we make, rather than this Global Trade Bullsh!t.