All perfect praise be to Allah, The Lord of the Worlds. I testify that there is none worthy of worship except Allah, and that Muhammad is His slave and Messenger.
A Muslim who resides in Muslim countries and enjoys sufficient means of living such as food, clothing and accommodation, etc. should settle down there. It is not permissible for such Muslim to migrate to non-Muslim countries for the sake of luxurious life even if his homeland is suffering from civil war. A Muslim living in a non-Muslim country may be involved in corrupt acts and tempted to do evil things.
For more benefit on travelling to or living in non-Muslim countries, please refer to Fatawa 86405, 377986, 369667, 89879, 81642, 88291 and 81464.
Allah knows best.