If you put an heirloom necklace into an indestructible safe and then lose the combination to that safe, do you still, in a meaningful way, still possess that necklace? Or if you're Rose Dawson, a surviving passenger from the Titanic, and you own the Heart of the Ocean diamond necklace, do you still own that necklace after you've dropped it overboard and it now rests on the bottom of the Atlantic?
My point is that, of course, you are what your DNA makes you, but your ancestral heritage and knowing who you are are dependent on you being able to contextualize the abstract. For instance, if you're adopted you still have your dna but your birth siblings who are raised by your natural parents also know that mom got breast cancer and the daughters are extra vigilant as adults while you are unaware of the risk you face. This is just one aspect, health, but the more meaningful aspect to those who've been hurt this way lies in personality and family and connections to past generations. That's all stolen from these people and it decouples them from knowing their place in the world.