Edward VIII was always a physical, intellectual, and moral weakling and would have been awful as king.
During WW-II, the Brits had to get him out of England and sent him off to be Governor of Bermuda. He had to be kept under supervision as he was a complete self absorbed trouble maker.
The Duke and Duchess of Windsor met Adolf Hitler in 1937. In 1970 he told one interviewer: I never thought Hitler was such a bad chap.