The swastika is not allowed in Germany so that’s why it’s omitted from plastic kits that are marketed in Germany. I live in Norway and we do not have this problem, nor in any other of the Scandinavian countries. I think the symbol is allowed in all European countries (except Germany) when it is used to represent an origin correctly. Like on original photos or on models which represent an origin.

I once did buy a Tamiya kit in Germany where the swastika was blacked out on the decals. So go ahead put it on where it belongs. Putting a swastika on the tailfin on a RC plane representing a German aircraft from WWII doesn’t mean you are a nazi or sympathise with the ideology.