You seem to be assuming that the only two possibilities for a tech company’s bottom line are either a) grotesque monopoly profits or b) operating at a loss. But this is a false dilemma, since there’s a huge range of somewhat less profitable but still highly profitable business models in between those options! Doing a few billion less in stock buybacks every year while investing in better quality products or higher wages isn’t going to affect whether the tech giants are profitable. They just might have to compete a little more for those margins.