This is all missing the point. Context matters in antitrust issues. Google doesn't have a 97+% monopoly position in web browsers, nor are they using Firefox (or Chrome) to deliberately harm their competitors in search (quite the opposite in fact). Apple likewise is not using a monopoly to harm Adobe, who have access to a larger smartphone market than iOS already (and in fact are shipping out of the box on most of those devices).
And you realize there's an important difference between "promoting one's own software" and deliberately installing (and making default) a free (!) equivalent to your biggest competitor's software on every single one of your monopoly-sized installed base?
But consider the alternative. Not shipping part of their software that fits on their platform just for the sake of making sure that the consumer's decision is purely unbiased? That'd be an awful business move, and they knew that.
And you realize there's an important difference between "promoting one's own software" and deliberately installing (and making default) a free (!) equivalent to your biggest competitor's software on every single one of your monopoly-sized installed base?