I still think you can tow a trailer that weighs more than your tow rig if you have load dist. hitch set up....and dont try to do 80mph.
I looked at a 36' Camper non 5th wheel...it wieghed 8500lb empty, so loaded about 10k. So thats more than a 1 ton crew cab dually w/a diesel. What are you suppose to tow that camper with.
We tow trailers at work all day everyday that weigh more than the vehicle towing it....its hard to aviod unless your gonna tow everything with a tandum axle 10 yard dump truck.
Alot of your points are usefull tho'. I just disagree with tow vehicle > trailer issue...but hey thats life.