Maybe you are right, we shouldn't laugh about this kind of arguments.. i was just trying to downplay it a bit.. I'm totally with you about being scientific on this.. in Italy we say "laugh to keep from crying" to express the discomfort about a topic that is important and still so badly dealt with that you feel like crying.. so you try to minimize by laughing.
Anyway, I'm sure the research keeps goin on with this topic.. the meaning of my sentence was that I'm sad that there are doctors the spread wrong informations that incentivate people to not use vaccines that helps in so many way and are therefore important