I don't think that market is a niche at all. From what I can tell, most pickup owners don't use them as a pickup. They use them as a more masculine pavement SUV. So, you'd think, the F150 L and Cyber truck would be perfect.
In Seattle, it costs $30 per large furniture item to make it go away using official methods. How much do you have? (And how does that compare to the price of buying and keeping a pickup truck?)
There's a couple of Honda (I think?) Kei trucks around me. 4WD, low bed, fold-down rails. I don't know about taking them on the highway with a load of furniture, but they're the most versatile-looking 'round-town vehicle I've ever seen.
I really wish we could have something like that, that's less than 25 years old.
You are right, except most of those people don't want an EV