I see your point.
But there are trade-offs. Apple is doing its best to be a monopoly, and so tell them what to charge or break them up.
Or simply allow the monopolist practices to do what they do and eventually one firm will own everything.
Apple is quite literally a minority player in the EU.
The EU population is quite literally a minority of the world population.
Meanwhile the EU—a minority of the world population—levies fines based on global revenue.
Another reason the fines are based on global revenue are to get around all the income shenanigans tech companies play, or do you really believe google's most profitable country is Ireland?
>Apple has less than 30% market share globally.
The EU is less than 30% of the population globally, and only 10% of iphone sales. By your logic clearly what it does doesn't have an outsized effect on apple that needs to be corrected.