No, bodily autonomy is a general right that applies to all human beings. But unborn children are, crucially, not fully human beings - not even to the same extent as born children, let alone adult humans. In this case, a woman's basic human rights trump a fetus's not-quite-human rights.
If an eight month fetus is "perfect viable as a baby via natural birth or C-section" then there would be no sensible reason to keep it attached to its mother any longer, don't you think?
If you want to make an argument that it is reconcilable with basic human rights to force a C-section on a woman against her will, then be my guest!
So far, no anti-abortion advocate has even dared come forward to make such an argument, let alone make a well-reasoned argument for their core demand of forcing unwanted pregnancies on women. It's always just God this or babies that. Be confident in your own position! If you think God told us to force pregnancies on women, then at least have the honesty to come out and argue the case! I am getting mighty irritated by these weasly, mealy-mouthed half-arguments.