A couple of errors in that. First, identical twins are not always genetically identical. In fact they are seldom genetic mirror images. Second, even if they were then if you’re correct that would mean that one twin could never develop leukemia or systic fibrosis or muscular distrophy or any other genetic disorted without the other twin suffering from it as well, and that certainly false.
And like any good lib pushing “born that way” you miss the significance of the study. Good job Noob!