Earlier quoted context omitted.
I teach antitrust to grads and undergrads. It doesn’t do anyone any good to call any of these firms “monopolies.” It’s not accurate, not for any of them. Nor was monopoly the issue in the Microsoft case (that was about bundling). There may be reasons to look at antitrust law and to change it with some of these firms and their behaviors in mind but “vertical monopoly” isn’t an accurate characterization of any of them.
When a company can loose money on a competiting company just to drive the competing company out of business; I call that a monopoly. No not monopolies like we had like the Bell telephone, but we have 2-3 huge companies that collude and stifle competition. Proving collusion is hard these days though. Too many fresh faced MBA's who are atheists. (I'm a Watch Repairer. I can't buy parts from The Swatch Group, or Reichmo…
You can't just redefine what words mean if you want to be taken seriously.
Especially when what you described is a legitimate and very common business tactic [1]