I'm a recent ex-anti vaxxer. Dad is still one, how can I get him to see the light?

Obligatory throwaway for obvious reasons. Mainly, I'm full of regret.Let me set the scene. He has a daughter age 6. We have one together and another on the way.I wasn't always an anti-vaxxer. I was once I met him, he was incredibly convincing and said his daughter wasn't vaccinated and she's the smartest kid ever and the reason is because she wasn't pumped full of vaccines. I was naive, but I believed he knew and did the research to back this up.Welllllll fast forward to us having a baby, I bought into anti-vaxx land. I read exactly the facebook bullshit they spew and I was sooooo terrified of putting aluminum and mercury in to my freshly organic baby! She is two now. Slowly but surely, I started digging a little deeper and saw just exactly how skewed this way of thinking is "I can't have a less smart, possibly autistic child!" but the alternative is??? fucking death! WTF! How is this even an argument? I choose alive baby. Every time. Any who, I'm not here to preach I'm just saying I've seen the light. The fact that both our girls have never caught anything is great. But its also giving him ammunition. "Well they've never had vaccines and they've never caught any of it because everyone else has it so why do they need it?" It's the same argument over and over and over.We're unexpectedly expecting again. I told him I want both kids vaccinated and new baby will be up to par as well and his argument was "I just don't trust vaccines" like why the hell not? He is vaccinated. He's never delved in any deeper in to researching ACTUAL studies or seeing what these diseases can actually do to a child. He won't even listen to the baby on youtube with whooping cough because he says "He doesn't want to make a decision based on emotion" but he's basing his decision on his VAST knowledge of vaccines and diseases and his lack of trust in modern medicine.... Do you see what I'm dealing with here?! He's being incredibly stubborn and won't even research the topic. We both get very hot and angry. I would really really appreciate and love some tips or ways to help shed some light on the topic. I don't want to go behind his back and get the younger two vaccinated without his consent. The older one isn't biologically mine so I'm absolutely not taking her without his consent. Sigh...... via /r/Parenting https://ift.tt/2JMjao8