I doubt there is a perfect boot for U.S. hunters. Hunters in the U.S. hunt in different temperatures. Hunters have seen not only various temperatures, they've seen change over the last four decades; a change in temperatures. And many only remember the last two decades. To many, what happened three decades ago doesn't matter.
Besides, many more are hunting from tree stands in winter, probably the worst place to find oneself, or feet, in winter.
I could note the benefit of "pressed felt" made of wool. But who would use the forty year old Sorel boots, I have.