In part, maybe, but the issue is a little more subtle. People who go all anti-vaxx or anti-GMO are not just saying that science is wrong. Hell, they often try to twist the science into supporting their point. What those people feel is that government and corporations are trying to hurt them. You don't see heated arguments about whether vaccines interact with this or that metabolic pathway. The issues is whether vaccines will hurt your kids, and whether government is forcing you to do something bad to yourself. It's not about facts - it's about trusting authorities that they're not trying to exploit and harm you.