Well, until you get into conflict minerals, depletion of natural resources, environmental pollution, exploitation of workers, ...

(None of that is specific to Librem/Purism or Pine64, but mostly applies to the tech industry at large, of course.)

The resources problem is worse with Apple, since they strongly hinder repair/reuse of their devies.

I honestly think even those can be made better, if the will is there to do so. At a cost, of course, which is the main problem.

In the long run, it becomes profitable to dig up landfills and recycle everything (see aluminium cans). Eventually, they'll dig up landfills to recover the old materials.