Maybe go to a therapist, address this issue maintaining extreme calm, bating her into a fit if name calling rage. I did this with my wife, along w sharing proof that the government allows(promotes) msm to publish propaganda. The therapist had no choice but to point out that her responses were emotional and out of control, while I was calmly presenting factual information in a respectful way. They use increments to get us here, it'll probably take increments to undo the damage.