How do you come to terms with your parents being bad people

Plz don't say therapy. I don't have any insurance so therapy is pointless. My childhood was pretty uneventful. As parents they were fine but I'm finding out they were actually very bad people. My parents fostered kids. I don't remember many specific children because I only saw them when their caseworker was there. Besides that I would never see them. I was also pretty young. My dad died 4 years ago but my mom is still alive. But she's going away to prison for the rest of her life. They haven't fostered in close to 10 years but my parents house got raided months ago because when they WERE fostering children they were trafficking them. When their house was rated they found 3 terabytes worth CP. I didn't know any of this growing up and I already have trauma from rape from my boyfriend in college. This is triggering me. I had a mental breakdown last night and burned all my family pictures. I wasn't even thinking when I did it. Then I have these thoughts that if my parents could be so evil am I also evil? I don't know how to cope or come to terms with everything. They were good parents. I had a decent childhood and now I have to live with the fact that they are monsters and idk if I can