Well, perhaps knowledge of your heritage isn’t as important to you as it is to these people. Aboriginals set great store in their ancestors, which I can respect.
I have traced my ancestry back 375yrs, and resapect them for what they did, but don’t get all misty-eyed, tear-blinking and hand-holding over them.
Living their lives in the past is what makes them ‘aboriginals’; I live in the present and for the future.