It doesn't matter if someone was forced into buying too many apple products or not. Governments have a responsibility to prevent Apple from abusing their market position and captive audience.
If governments truly had that mandate the world would look quite a bit different than today. The same american government allows boeing to be the one american jetliner manufacturer with all the problems that has created, for example.
Yes, antitrust laws have been largely ignored in most of the western world for decades now. I'd argue that's a bad thing though, not an argument in favour of continuing to ignore and not apply antitrust laws.