While I'm *speculatively* open to the idea that Dee's Enochian gear and cartography played a role in inspiring British colonial expansion in the Elizabethan era, I also suspect that whatever that was (if anything) likely got co-opted early on by other interests.
I don't really accept that Enochian Angels continue to set the agenda for the British ruling classes to the present day though. That feels like a Murray hypothesis-like easy conspiracy trope that obfuscates more than it reveals.
I don't think the likes of Boris Johnson and David Cameron, and their aristo public schoolboy ilk, serve Enochian Angels, either consciously or otherwise. That doesn't ring true for me at all.