You know, it's really simple, when you come right down to it.
One, you are not stupid.
Two, we have vastly more experience with Native American artifacts then you do. That is a fact. Hundreds of years of combined experience. I myself have roughly 60 years experience handling artifacts from southern New England, the very region you live in.
Three. You are not showing us any actual artifacts. I speak, I humbly submit, for every experienced artifact hunter, digger, and collector on this forum when I tell you that. You are not showing us any artifacts.
Is it really such a bad thing to simply admit you do not know as much as we do, you do not have anywhere near the experience many of us have, and it is entirely possible you actually have a lot to learn before you do have sufficient experience recognizing artifacts? Is it really so hard to admit that a person needs be a student before he or she can be a teacher?
Look, suppose you needed to have heart surgery. And suppose the decision as to who would perform the surgery was in my hands. And suppose I told you I was going to pick one of two people: the top heart surgeon at Massachusetts General, or the first person I bumped into in the Boston subway. Who would you ask me to chose, and why? Which of those two people is likely to have the experience you would hope for, since your life would be on the line?
Go back to point number one. You are not stupid. As such, you should be able to acknowledge experience and knowledge is on our side, not yours, you are the student, not the teacher, we are the heart surgeons, and you are the guy sleeping on the subway. We don't wish to mock you. You don't have to keep it all inside you. You let it out. And we rendered the verdict. You are not showing us any artifacts.
And you know what? We are as good in knowing this as any member of the museum staff you will run into at the Robbins. You think the museum will be the experts you need, and we are the chopped liver of the hobby? You be wrong.