Earlier quoted context omitted.
Seems as dead simple to me as to argue about murder. If you're a company that's present in a certain geographic area, you're expected to pay taxes in that area. If you don't pay taxes and you actively work on not paying taxes, you're immoral. Done.
There's another side that says that taxes themselves are immoral given that they are paid as a result of coersion. So no, not done.
Apple doesn't get to decide for us what our collective moral values are. If they don't like them, they should stop doing business in Europe. Otherwise, they should just pay their dues like nearly every person and small/midsize company in Europe does. Since Europe is a hugely profitable market, this is the better option for them.