Dawkins should be arrested for all of atheism’s crimes against humanity since he has put himself forward as the spokesman for atheism.
You are also conflating religions and denominations with the personal relationship with Christ that Biblical Christianity actually teaches. The Roman Empire was even no match for the power of the Gospel.
Well, the Muslims claim that the Roman Empire was no match to their false faith, when Constantinople fell into Muslim hands, either. In fact, they use this very incident as a fulfilment of Muhammad’s prophecy that this centre of Roman power would collapse onto their hands.
The truth is, empires always fall, powers always shift.