I agree that there were many, including Ambassador Kennedy, who were friendly to the Nazis. They don't have stones thrown at them here becasue this is a discussion of royals, primarily the Duke of Coburg. This isn't too excuse others and President Kennedy had to basically keep his father pushed far into the background when he ran for President. If the tools that exist now, the internet and 24 hr news channels primarly, existed back in 1960 it probably would've been impossible and his father's statements and actions would've been endlessly replayed.
With the royals who were anti-Communist there was also a strong vein of anti-Semitism, both mild and overt. Prince Philip admits to this in the Royals and the Reich book when it's discussing some of his relatives who were members of the party. It was definitely a confusing time in Germany--in some of the volumes of the Illustrated London News I just bought, there are a number of photos and articles dealing with the disturbances throughout the country and some photos of the new agitator, Adolf Hitler, in Bavaria. His book, Mein Kampf, was published in 1923 or 1924 and laid out all his opinions on Jews and the need for their expulsion, etc...It was there for everyone who wanted to support him to read. Those who became strong supports, as did CE, knew all this going in and accepted it, even embraced it. Sometimes people actually do what they say they're going to do. Perhaps it went farther than people realized in the beginning but the basics were there from the very start.
"The world is too dangerous to live in - not because of the people who do evil but because of the people who sit and let it happen. Albert Einstein"