Nah I believe it, but that's how people will see it, especially if they don't know much about their own religion which is usually the case sadly

It's most likely a thing of respect, Judaism and catholicism are heavily Christian centered they just probably felt like you were being disrespectful, to think a star of David is on par with a pentagram or pentacle is a little out of touch. I feel you because I had once lost my own faith and studied other religions but trying to be a know it all around generally close minded individuals will never go over well, understandably so.