Xenophobia
From Tardis Wiki, the free Doctor Who reference
Xenophobia was the fear and/or hatred of strangers, foreigners and aliens.
On Skaro, Ian Chesterton recognised that the Daleks were intensely xenophobic, describing their hatred of the Thals. (DW: The Daleks)
The Seventh Doctor described the 1950s as the height of American xenophobia as a result of the Cold War. (DWM: The Good Soldier)
In the year 200,000, the Jagrafess manipulated humanity into becoming increasingly xenophobic. (DW: The Long Game)
The Inter Minorians became xenophobic after a space plague had been brought to their world. (DW: Carnival of Monsters)