It's not about whether you agree with birthing at home - it's about whether it should be made very difficult (if not illegal) to be attended by a qualified professional in the place of your choosing. It's about whether midwives should be allowed to register and practice as midwives in a setting of their own choosing, and in line with the guidelines that already guide their practice.
It's about women's rights as well. If the push was to stop elective c-sections, or the use of epidurals, then there'd be outrage! But because it will only affect a small number, it's apparently ok to take away this right?
And the small number of births probably has a lot to do with the fact that it will cost upwards of $3k to birth at home, whereas a birth in a hospital costs nothing, because one is covered by Medicare and the other isn't. This, plus the small number of midwives in private practice, means that a lot of women just aren't able to access the option, regardless of their preference.