In reality, these Force-sensitives actions drive their allegiance to the Force, and ultimately dictate their mastery of abilities.
Finally, the current argument is that Rey Palpatine completes the Chosen One prophecy.
Rey’s Force alliance is not genetic, so she’s not necessarily rejecting the Dark side any more than any other Light side Jedi.
I can sort of see the argument in that Rey denied her Palpatine heritage in an effort to be good, but that line of thinking implies that individuals are destined to be only Force wielders in the Light or Dark side.