<human>: Can you condense the text into a few key points?

About a week ago my mother and I got into a really heated argument over ethical rights of young kids regarding medical procedures. I found out that she believes autism is caused by  vaccinations and would have chosen not to get me and my siblings vaccinated if it wasnt for my father. When asking her if she had any proof of this she claimed she did:

She said that it "been scientifically proven" to which i replied it has been debunked multiple times by scientist and then she hit me with something I cant figure out how to refute. My mothers best friend (we'll call her sally) has a son who has autism. Sally got her son vaccinated and soon after he developed autism. Both my mother and sally are now huge advocates against getting kids vaccinated and my mother very often spreads misinformation on the subject.

My mother is very much against mainstream medicine. In her words she believes "in things that only match up with her own ideology". As such she follows and believes so much homoeopathic and psudo scientific bullshit its often hard not to loose my temper in anger. I dont mind when she tells people simple things like "acupuncture and reiki healing work". But when she says things like "autism is caused by vaccines", I cant help but worry about the damage this kind of belief holds.

How do i get her out of this ridiculous belief knowing full well that her kids have been vaccinated and are completely fine
<bot>: Mother thinks vaccines cause autism. Her best friends son got vaccinated and now has autism. She believes in pseudo-science and cannot listen to reason