Yes, that is rather strange. Why did they move to the West, if that was not really acceptable to them in the first place?
Then we have the huge Muslim migrant invasion of the West (millions), which is actually a part of Jihad according to the Quran. The whole idea being to come into the West and then undermine Western and Christian values, establish Sharia law, establish mosques, promote Islamist Radicalism, and eventually establish an Islamist Caliphate. Not to mention increase the Muslim population drastically by having many more children than Westerners.
This is ASYMMETRICAL WARFARE, but Western politicians are too stupid and too ignorant to understand Islam and its plans for worldwide domination. After 9/11 Bush said stupidly -- "Islam is a religion of peace!" Imagine the reverse if 9/11 had happened in Saudi Arabia. Saudi Arabia has been playing both sides -- funding Islamist terrorism and ensuring that the West buys its oil, so that more terrorism can be funded!