He played for France as a youngster - I'm really not that bothered, but if he'd chosen France he'd be well down their pecking order.
There's one real test - Jellied Eels or Frogs Legs?
It's 2026, its not uncommon for people born in one country to represent another country.
The fact he was in nappies when he moved to the UK gives him a pretty strong case to be called British. 🙄