Xenophobia

Xenophobia (from Ancient Greek ξένος (xénos) 'strange, foreign, alien', and φόβος (phóbos) 'fear') is the fear or dislike of anything which is perceived as being foreign or strange. It is an expression of perceived conflict between an in-group and out-group and may manifest in suspicion by the one of the other's activities, a desire to eliminate their presence, and fear of losing national, ethnic, or racial identity.