Okay so first, WHAT in the blue FUCK is that?
As for the other crunchy shit, the vaccine and homebirthing arguments are two of my favorites.
Now, overall, I don't give that much of a fuck about homebirthing, primarily because you have two types of homebirthers:
First you have the overall sensible women who are curious and want to try it: They and their baby have a clean bill of health from a doctor, they get a midwife or nurse to oversee it, and they're more than willing to go to the hospital if things start looking iffy, before or after the birth starts. They are flexible and not married to the idea of giving birth at home, and will prioritize their baby's health above anything else.
And then you have the crunchy moms.
The type that A) passive-aggressively (or outright) judge women who give birth in hospitals, or B) the kind that smugly ignore the various risks inherently associated with the practice, up to and including pre-existing health issues for both mother and baby.