My mother (now dead, ding dong) would not shout exactly, but would just be extremely dismissive in a way only she could (a sort of head tossing thing combined with muttering in her native language) and then tell me what a critical and over sensitive person I was, and that she'd never liked me and it was my fault my childhood was so awful because I was born critical and over sensitive and am the incarnation of my father's evil mother.
My father, whom I last saw briefly at the old witch's funeral, just goes all vague, changes the subject and then finely gets patronising and over affectionate, sort of "there, there, silly you remembering such things, it really wasn't a big deal and it's all in the past". Bearing in mind this man was my mother's enabler, and controlling and sometimes violent monster in his own right of whom I was terrified as a child, you can imagine what a head fuck this is.
This is my 5th year NC with him. In our very last proper conversation, I was trying to talk to him about how his treatment of his children when young still effected us today, especially regarding my sister, the golden child. Whilst I was trying to talk to him about this, he launched into a monologue about Vinnie Jones. Yes, Vinnie Jones. He went on and on. I was waiting for the punchline, some analogy between Vinnie Jones and my sister or me or the situation. "What's Vinnie Jones got to do with it, dad", I asked when he finally shut up. "Nothing", he said, "I just wanted to change the subject." That was the proverbial straw that broke the camel's back for me.
OP, we have all experienced the dissembling behaviour you have. If these abusers had enough of a conscience to admit/acknowledge what they'd done was wrong, if they had the humility and humanity to listen to the hurt they had inflicted on their children, they probably wouldn't have done the wrong in the first place.