This is a fair rebuttal, but pointing out US vs EU/Japan obesity does not in any way establish causality. We're both merely arguing correlation: Me: Healthcare

This is a fair rebuttal, but pointing out US vs EU/Japan obesity does not in any way establish causality. We're both merely arguing correlation: Me: Healthcare access is positively correlated across time with lifestyle disease. You: Healthcare access is negatively correlated across space with lifestyle disease.