Let Islam be Islam in Islamic countries. Let Christians be Christians in Christian countries. Only a fool thinks that Christianity and Islam can coexist. One will be crushed by the other. A wise man would keep the two separated. A fool would welcome the mixing, then bemoan the inevitable terrorism. 

Just an FYI --- there is a wall, gate and a gate keeper at Heaven. Inviting murderers and rapists into my home is foolish and if they then attack my children I would be partly responsible and I would NOT have shown Christian charity!!! 

If you wish to condemn me, then also condemn Lot and the Angels of the Lord who stood behind Lot's massive locked house doors, while the mob at Sodom were outside demanding to be admitted. See how that works out for you.