One side believes there's a risk of companies leaving the App Store if that monopoly's broken, which would make things worse for them than the current situation.
The other thinks that's bullshit because that hasn't happened on Android.
The first notes that Android hasn't restricted Facebook practices such that Facebook's blaming them for significant earnings misses, so, you know, things might play out a little differently on iOS than it did on Android, and also this group prefer the status quo to even the best-likely outcome from shaking that up, so no amount of risk to it is worth it to them (us).
Except usually instead of writing it out plainly like that, the pro-Apple poster writes something shorter and less well-considered, probably assuming certain parts of that are obvious and don't need to be written out, the other jumps on it, a flamewar ensues, and the next time around we get a sea of comments that are like "I just don't understand how this would hurt Apple-lovers, they can just stay on the App Store" and it all repeats.