It is the case the grandparent is referencing with IE bundling in Windows. It reapplies the antitrust laws to monopolies selling bits. If Google is found to hav

It is the case the grandparent is referencing with IE bundling in Windows. It reapplies the antitrust laws to monopolies selling bits. If Google is found to have a monopoly in market X and uses that control to gain control of market Y by forcing out competitors without really competing, that is the type of monopoly that's being targeted. This is what the grandparent is talking about. It is different from a simple monopoly the parent refers to. Having a monopoly isn't illegal. Abusing or attaining the status in certain ways are. Walled gardens can certainly be considered a form of monopoly, but that means nothing in the eyes of the law unless they use abuse their monopoly status.