Unfortunately, it's been the management of American businesses that have sold out the American workers by outsourcing stuff to make more profits for them and their shareholders going back to the 1970s and before. The "designed by Americans and quality controlled by Americans" - but manufactured offshore - that you speak of...
I started buying Craftsman tools before I was a teenager. They were USA made back then. There were better tools, but Craftsman was a decent quality for a decent price - and American made. Unfortunately, it's hard to find that now.
As for tool boxes supporting 3-ton engines, I'd have a hard time even balancing such an engine on a toolbox and wouldn't be likely to do so in the first place. We have assembly and tear down tables made out of structural tube and plate for such things - not a shiny $5K to $20K box. And then rolling it over a 2x4? Hell. We bitch every time we have to roll anything by hand over the base plate on the one 2-post lift - and that's a lot less of an obstruction than a 2x4. Besides, the last time I had to move my box I used the forklift.
I've got a number of Snap-On tools in my boxes - both at home and at the shop, but I also have stuff from the other tool trucks, Craftsman, Harbor Freight, and other miscellaneous stuff. Mostly because I also have to pay my bills and put food on the table - and I'm not willing to have a five figure account balance on the tool truck.
I've got to give Harbor Freight some credit. In recent years they've really stepped up their game. Yeah, they still have the sh** product lines like Pittsburgh and Central Machinery, but the ICON, Bauer, Daytona, Doyle, and such is pretty decent. It's where the Craftsman stuff was when I was growing up.
