No. Devolving. "Intelligence" has enabled many of us who would have otherwise died off to continue to live and procreate. That has contributed to massive genetic defects being continued and spread throughout the gene pool. This ranges from poor immune systems to functional defects such as poor pelvic girdle configuration in females.
If/when TSHTF, and this "civilization" collapses, there will be an immediate massive dieoff. That will be not just from starvation, but from all the various diseases that people have, where they are kept alive by their various meds. That will continue for generations to come, until the maladaptive genes are again weeded out.
Childbirth has always been a problem in humans, but if/when TSHTF that will be a massive percentage increase in women dying during childbirth, without Cesarean sections, for generations to come, until the maladaptive genes are again weeded out.