He was born in Kenya before the country became independent from the Crown. Therefore this makes him a subject of the UK. How’s it feel to have a England running the USA?
Some have proposed that his antipathy towards the UK comes from his indoctrination that they mistreated their African colonies.
I have far less problems with an Englishman running the USA, and far greater problem with an African. Legally, his father might have been a British subject, but he was a Muslim African. And that is very far removed from a Western Englishman. Big difference to me and very likely all of us.