While I do not disagree with anything you say, you also completely ignore that chemical pollution in our drinking water and food has been shown to cause changes

While I do not disagree with anything you say, you also completely ignore that chemical pollution in our drinking water and food has been shown to cause changes in us. Instead of completely ignoring their point and just telling them to accept themselves as they are, why should we not also be looking at our environment and asking if it is impacting us?