If you look at most of the items listed as failing...slides, screws, lights, generator, etc.....
It doesn’t matter if it’s a motorhome or trailer including 5th wheels....
We’re talking about the problems with the “home” part of our RV units.
Quality control is in the hands of us....the buyers. I would also hazard to bet if we took our sticks and bricks home to repeated bumpy roads from sewer grates, frost heaves, bridge expansion plates, railway tracks....we’d be doing a lot of fixing there too.
I’m not a home builder, but I don’t believe drywall would survive very well either.
Just the nature of the beasts.