All of this only applies if you buy a subsidized phone from the carriers. Until the carriers can legally forbid non-branded phones from being on the network, th

All of this only applies if you buy a subsidized phone from the carriers. Until the carriers can legally forbid non-branded phones from being on the network, they only have the power that their customers, who apparently like giving up their freedom of choice for a low upfront phone price, voluntarily give them.