Refugee

You keep using that word?

Refugee means "a person who has been forced to leave their country in order to escape war, persecution, or natural disaster. It is from the French réfugié ‘gone in search of refuge,’ past participle of (se) réfugier (see refuge)."

Refuge is defined a condition of being safe or sheltered from pursuit, danger, or trouble.

Someone coming to make war, persecute and create danger or disaster and generally make everyone else feel unsafe is not a refugee.