The letter sounds angry and that could be threatening. Your letter if not relegated to the trash can would fit nicely in their anti gun rights evidence folder.
I disagree. The OP's letter is polite and to the point. He has a Constitutional Right to write such a letter. There is nothing threatening in the letter. The anti's will always have stuff to complain about, but it shouldn't stop the OP from politely expressing his opinion to the media and members of Congress. I might not agree with the automobile analogy, but I understand the point he's trying to make. I say well done, and keep up the good work!