Modern travel trailers - Who makes them in the US?

Europeans were forced to build like that due to high gas prices, narrow roads, small tow vehicles, etc, etc, etc. We build them big and heavy because we have big roads, long distances, huge tow vehicles and apparently enough wealth to not give a sh*t about the now high gas prices. That and we're a whole lot fatter than they are. The oems build what sells where they are located.