PTSD is less traumatic than personality disorders like borderline personality or narcissistic personality disorder which are traumatic injuries to very young children who had weak attachments to caregivers and then failed to develop normally because of trauma.

I think schizophrenia with frightening hallucinations would be worse trauma than PTSD. When I trigger I startle and remember feel hurt and anguish...normal adult responses to terrible things. Bad as It is its probably better than someone who sees demons licking their chops and coming to drag him to eternal bell to be eaten alive forever.