Honestly, I think breastfeeding reminds people that we are mammals andthat we have biological reason to feed our young, the milk our bodies creates automatically in response to birth.
No matter how a baby is actually fed birth will trigger milk production in all but the rarest cases. (Though I understand getting the milk into the baby is far from easy or even possible for some mothers)
That can upset some people who prefer to ignore such obvious things.
I think it is the idea that a baby is latched onto the mans sexual play toy is a close second objection. Amazing that still some people think a mans desires come/ before a babies needs, but there are plenty people out there who seem to think this way.
Wonder how many of these same people who have issues with our basic biology, drink 'might as well be urine' breast milk from a cow in their cups of tea ?
My stock response when people start waffling on about what breastfeeding is like....is to say that' breastfeeding is not LIKE anything, it IS how a baby eat.'