You are describing some idealized optimum vaginal birth. Those are not the norm. I've spoken to one woman who indicated she recovered rapidly from one birth. It was her first child. She attributed it to youth. Subsequent births were harder on her.
I've had two children. Both births were relatively uncomplicated vaginal births with episiotomy. It took me 5.5 weeks to stop bleeding after the first one. It took me six months to regain the weight I lost while throwing up for 8 months. Etc.
I had unusually good medical care. I was relatively well educated for a young woman. Etc.
I did have an undiagnosed serious medical condition complicating things. Medical staff came to get me off the floor after people in the waiting room harangued them about ignoring what a terrible state I was in and I got an admission of error on the part of staff to some degree. They had dismissed my complaints as "You don't know what pain is. You have another 8 hours to go." without checking me. No, I did not have 8 hours to go.
Although I have also read that vaginal flora may be good for the baby, you are conveniently overlooking the fact that it can also be bad for the baby. C-sections are sometimes recommended to protect the baby from the mother's STD -- for example, if she goes into labor while having an active herpes flare.
I'm pro vaginal birth. I'm not thrilled at the high rate of C-sections. But I don't think you do any good by so completely distorting the facts.
Women need substantial support to successfully birth a healthy baby with minimal complications for mother and child. We still tend to fall short on giving women adequate support. So, in essence, I'm not willing to argue that any particular woman was wrong to choose C-section for herself.
https://www.medicalnewstoday.com/articles/264473.php
https://www.cdc.gov/std/pregnancy/the-facts/std_pregnancy_br...