I thank you for your reply and interest. As an Arbuckle male I felt the need to contribute. I will pass on that there are still very few of us that have done so. We are all very different Arbuckle families, that is we are not very close matches. We need a lot more Arbuckle DNA data/tests before we will begin seeing family matches. As with other family/surname groups, the surnames were dervived from what you did as a living, or where you lived. So many very different families took the same surname a thousand years ago, or more. I personally have many DNA matches (hundreds), but they are not super close. None of my closest matches have the Arbuckle surname. I am proud that 2 of my closest matches have the surname of Campbell, it helps to prove that I am Scottish. I invite and beg others to contribute.
I had to rely on DNA from my mothers, brothers, children, for DNA of her male line. Only one of them would help. So I feel/share your furstration. Her Hurst line is even more unique than my Arbuckle.
Many people are scared what will be done will the DNA info. Maybe because of their own past, or maybe because of possible future actions. Many are very deeply religious, and feel this is not a good thing. We can only ask them and tell them this is just for genealogy research and not shared beyond that. You can try to tell them it will help to find and connect to their ancestors, and or existing cousins. But not every one has our passion.