I have doubts that anyone is objectively, necessarily "bad". But feeling that way about people is a very ingrained response which probably helped us survive sometimes, or even often. Certainly there are people who seem to fulfill that definition, like Hitler. Yes, he had horrible intentions about the rest of the world, and it's good, I think, that he was defeated. But that's probably not exactly what you are asking about.

The people outside who hurt you -- feeling the hurt and then feeling they are bad, that makes sense to me at a basic level. Feeling that therapy is bad or hurtful and then feeling like therapy and the therapist too is bad makes sense, too.

And, when I was little especially, when I did things that my mother or others in my life didn't like and they glowered and disapproved of me, then I definitely felt that I was "bad", as probably they felt in that moment.

How to get from a place where I feel like a "bad" person to a place where I feel something different -- that remains a dilemma sometimes.