I'm almost the diametric opposite of that; I believe that manufacturers shoud be compelled to build things to be easy to take apart, replaceable, and upgradeable, if that can be done at a net-zero cost, and should be subsidized by the state if it can't, possibly with tax breaks.

But I don't believe that they should be required to keep it under warranty in that case. I'm fine with a company putting a warranty seal on a device if they don't want people to touch the insides.