"fell apart under the loads that it wasn't designed to carry" is that what happened? What would happen if you overloaded an f250 with loads it wasn't designed to carry? You seem to be mixing up what a light pick up truck vs. the giant full sized pick up the Americans make.
Yet sales tell another story worldwide. In the US Toyota trucks have very limited models, but world side they have a much wider range sold in every continent except in North America. Pick ups like the LN106, LN167 and FJ75 Landcruisers all have a major uses world wide. And if you try to convince these buyers whether they be from the Australian Outback or some African militia that mounts an anti-aircraft gun the the back that their pickups are toys, they would properly think you are nuts. same with the (non-American) 4X4 off-roader and their 30 year old short wheel base LN45 LandCruiser. In fact full sized American pick ups just will not sell in most parts of the world.
If you are interested in a full sized pick up then there are no alternatives than the Americans. But don't try to compare them to the smaller pickups used in other parts of the world. Not every needs a massive truck with a massive engine to prove a point. Although they are comfortable with impressive towing power and I would seriously consider an f150 with a diesel engine if they were available on the market here. Which they are not. The largest would be the new Ford Ranger which will be out in a few months... with a 2.2liter 4 cylinder turbo diesel engine or a 3 liter 5 cylinder 200hp turbo diesel. Which would make it the most powerful in the market. A very different market.