Profits are important for the market you are in. Market share can be important for dominating markets you are currently not in. That is the base of all antitrust probes: A dominant market share is not illegal. Using that dominant market share to boost your position in other markets is illegal.
So, the central question is: Does Google use the dominant market share of Android and its position to further their position in other markets, e.g. the browser market (Chrome), the mail application market (GMail App), news market (Google News) and so on. If yes, there is a problem with european antitrust law.
Apple is clearly levering the market power and integration of iOS and their other services to drive their agenda in TV, music, mobile payments, cloud storage, music and video production software, etc etc. I don't see much difference here.
Dominant market power and leveraging it are needed. Apple may leverage their market power, but they aren't dominant. Let me ask directly: Do you not understand it (so, do further explanations help) or do you not want to understand it because it goes against your positions? Both are ok, just asking for clarification to make sure I don't waste your and my time.
They are utterly dominant in the one metric Apple boosters usually claim is the one that counts. So why is that metric suddenly irrelevant now? I realize that as the law is written this may not matter but if we're discussing whether the government should intervene here it's perfectly relevant.
I'm an iOS developer by the way so I'm not anti Apple. I just think there is already healthy competition in mobile and government intervention is going to hurt consumers in this case. Apple can regain market share any time it chooses to by lowering its unprecedented profit margins.
So, the central question is: Does Google use the dominant market share of Android and its position to further their position in other markets, e.g. the browser market (Chrome), the mail application market (GMail App), news market (Google News) and so on. If yes, there is a problem with european antitrust law.