According to the wikipedia article, she was born in the UK before birthright citizenship (EDIT : Laws changed), and lived in Nigeria until she was 16.
When and how did she get British citizenship?
EDIT : Turns out that the conservatives tried to prevent people like her from being citizens the year after she was born. 👍
if only, so that we could shut up her and Priti Patel , Sunak, et al. Bunch of turncoats