You can call it "fear mongering" if it makes you fearful, I call it "objective forward thinking", and share my rationale for those who may find it compelling and useful. I don't feel any emotion connected to this.
Just ignore it. Maybe you'll be correct, nothing will change, the torrent of scheduled drugs and machine gun parts will continue to be directly mailed from China to buyers in the US, and the government will be utterly helpless to make the system as tight as any number of "no-reship" countries already are.
My argument is its prudent to stock up while the shit you need is easily available and cheap, for a lot of reasons, as current events are demonstrating.