Which is worse? Which is more moral?
It's a frightening thought to be sure. I pray to God it'll never come to such a choice. However, the millions of Muslims who are migrating to the West every year and whom refuse to assimilate or give up barbaric notions are rapidly bringing the issue to the fore. If current demographic changes aren't immediately halted, in less than twenty years, Europe is going to disintegrate into genocidal civil wars when the Muslims attempt to force everyone to adopt Sharia and convert to Islam. It'll be bloodshed on a scale never before seen in the West. When Muslims take over France and the UK, they'll be in possession of nuclear forces so powerful that they can blackmail the world into becoming Muslim. Hell, if they are allowed to take over Israel, they would blackmail us much sooner with Israeli nukes.