Is it your name, your ancestry, or a membership card that gives you bragging rights as a Clan MacX clansman?
I don't know about "bragging rights", but I do know I'm a Chisholm by surname, geneology, clan society association, and a DNA relationship to the original Norman chiefs. I agree that the relationship between the chief and his people doesn't exist as it once did, even though in the mid 19th century a large number of Canadian Chisholm's swore an oath of fealty to the new chief. I have found that a clan relationship does still exist among the extended family itself. As a young hippie in the late 1960's I traveled (hitch hiked) all over the US and Canada and always looked for fellow Chisholm's. I always found them friendly and helpful. Once, my mother was traveling alone in New Zealand and became stranded. She went to the phone book and called the first Chisholm she found, they gave her comradeship a place to stay until she could make arrangments to get home. So is the clan dead? Maybe, but "The Blood is Strong".