Do you struggle with the guilt of LC or NC? How do you cope with it?

My parents were abusive, physically, verbally, I was emotionally neglected my whole life. However, I gaslight myself, constantly, thinking it maybe "wasn't as bad as I remember" and even worse, now that they are older, it hurst to see them need help and not give it to them. I really want to go NC or very very LC with them, but the guilt, eats me alive.