The most powerful tool an abuser has is the misplacement of shame.
As such, if you can, one of the best things to do to fix these issues in the world is to speak about your own abuse without any drop of shame. Speak about it like you would about being cut off in traffic. “Seriously? Look at this idiot!” “Did you see that?!?! What the fuck is wrong with this guy?!?” etc.
Refuse to carry even a drop of the shame. Put the shame, loudly, where it goes.