> The logical conclusion then is that the only device that should be allowed to be manufactured is a personal computer.

Nah, the capabilities can be limited, just not artificially so. I understand there is a bunch of nuance in that statement that we can get lost in discussing, but the brief salient point is "if the manufacturer can do something to my device, then they should not add restrictions for me to try to do it also". We don't need to get lost in the what-ifs that such freedom discussions often devolve into.