The same sense is applied to guns at the low level as you describe it. We have laws and regulations as well. We have a whole bureau dedicated to it called the Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF).
-The North American continent had never been a settled country until the original colonizers crossed the Atlantic. The term or idea of a legal/illegal citizen did not exist.
Really? So the English were just running up in France as they pleased? Or do you mean that the settlers told themselves, "Look. Their system of government is not like ours. So we don't have to acknowledge it.
The native population of Indian tribes were not a peaceful nation. They were killing each other and taking each others land just like we did.
Being a peaceful nation or peaceful nations has nothing to do with anything. The European countries weren't peaceful nations and they were trying to take over each other all the time. But they still recognized that the land they were trying to take over wasn't theirs and it was sovereign land. The same land grab and biological warfare would have occurred if all the Native Nations were peaceful anyway.