I respect your reply @lifeaef. I feel like I have really tried this approach with people I love, but they are unwilling to make ANY concessions from their antivax standpoints.
I also tried to follow their research, but began to to feel like I could spend a lifetime responding to their "research" and it wouldn't change any opinions. If I go from an emotional angle I am told that is just an emotional angle, so the argument is not valid.
I guess everyone perceives and evaluates risks differently, and some people will never change their mind.