Obviously Apple doesn't hold the EU's values in high regard (few people in the Bay or even the US do), so of course they will try to fight it. It's perfectly rational and even expected behavior.
And it's perfectily rational for the EU to take appropriate actions against companies that hold its values in contempt. Apple should expect that and temper their contempt accordingly if they intend on continuing to do business here.
22,000 of Apple’s employees are EU citizens and residents.