Caesarian births directly affecting human evolution

[Jenny A]

Caesarean births are leading to the genes preventing vaginal birth not being eradicated. This means that a higher and higher percentage of births need to be by C section.

http://www.bbc.co.uk/news/blogs-the-papers-38214665

I'm sure modern medicine of all kinds is changing the human genome. What about people who need glasses or contacts just to function? People who would be dead without antibiotics? What anout premature births? They are much more likely to survive now. Children of rapists not so much. The thing is that we and the tech we create are the environment and of course that affects whose genes make it to the next generation. Brains matter more, physic less. We are probably also changing in ways that eliminate people more susceptible to toxins and pollution generally.