It wasn't a 'trade collapse' or 'collapse' in one nation that caused the Bronze Age Collapse though.
I get you have a thing about comparing modern times to Rome or similar ancient societies, and comparing current events to them, to try to predict what will happen next.
However, you might want to look at some of environmental context to your historical allusions, before prognosticating about what is going on in the world. The Bronze Age collapse happened because environmental conditions outpaced many societies of that day's ability to handle adverse weather events, longer winters/colder summers, and the bad harvests that followed.