The comparison you're trying to pull here is outrageous. "Can't produce enough breast milk to feed a child" does not equate to "scared of needles so I get to avoid vaccines". 

Yes, 100% I agree that going full breastmilk is the best thing you can do for a baby. Nobody is arguing that. But it is not always an option. Making any argument that somebody should feel like they aren't doing enough for their child simply because they cannot produce enough breast milk is a terrible, terrible thing to do. People like you are the reason my wife basically went into hiding for the first 6 month of our child's life. People looked at us with open disgust when we pulled out formula in public. I sometimes think they would prefer the child to go hungry.