I don't understand why it's so tricky on your side of the pond.
Well, I don't understand either, if you're talking about the USA as being "[y]our side of the pond." We can put any marking we wish on our homebuilts--North Korean, Iranian, Nazi, Hello Kitty, etc.
It's only Germany, as far as I know, that literally forbids the display of swastikas. Hell, I can cover my Porsche Boxster with swastikas and I'm sure people will complain, but it's not "tricky."
What am I missing?