China wont become the next empire either, but it will be a multipower
world, with the US, EU, India and Russia, but

The Expansion of the EU actually has had a democratizing effect on its members, and discourages aggression -

What is the second largest Muslim country after INdonesia.
Answer:perhaps surprisingly , India. There are 150million Muslims in India and yet you dont see them participating in any terror network. Because India is (despite some of its problems) a Democracy.