As someone whose mother is anti vax and has 3 new children after 20 years of having me, what are your suggestions? I am never condescending and I do my research

As someone whose mother is anti vax and has 3 new children after 20 years of having me, what are your suggestions? I am never condescending and I do my research to have some arguments. I am trying to be as respectful as possible. I have tried so many different approaches. It has not worked. Nowhere close to it. It is not just anti vaxx, it is alternative medicine, alternative education and alternative everything else. She quit her finance job and is studying homeopathy and other types of alt medicine. With 3 young children I would consider it important that they get the best future they can.