anglophobist
/ˈæŋɡləˌfɒbɪst/Definitions
1. noun
A person who dislikes or is hostile towards the British or British culture
“The anglophobist views on the monarchy sparked controversy among the public.”
2. adjective
Relating to or characterized by a dislike or hostility towards the British or British culture
“The anglophobist sentiment in the media has been rising in recent years.”