Kylo would argue that Luke had made her fear her power, either way. Fortunately, he isn't reading her thoughts quite so closely.

He shakes his head. "I don't know." Had she asked that at some time in the past, he likely wouldn't have admitted to that. But he's beginning to realise just how many things he'd taken as truth have turned out to be wrong.

"They were afraid of the darkness in me. I know that much." All he can guess is that they thought him knowing would make it worse. and didn't consider the damage caused by keeping things from him.