I do agree with @seesaw It has to do with a narcissist wound.
These people who put the blame into others they are the ones who used to feel more vulnerable so they build a facade and if this facade is at risk, they don’t doubt to take action to put the blame into you so they can save their face.
This takes nobody to anywhere but they feel triggered if anyone dare to split their mask.

It has a lot to do with how a kid is brought up or raised by their parents. I can’t stress enough on that some people shouldn’t have kids.