It is a fallacy to think that truth only exists in the realm of academia, especially since most social scientists don't believe in the objective existence of truth.
Secundo, the article has close to 100 sources. Did you click any of them?
Tertio, you shouldn't rely on somebody else's definition of truth, but on your own thought process and intuition.
Quarto, if you've remained stuck at the idea that behavior is mostly influenced by the social environment, you're 100 years behind (science) - quite the paradox!
Nontheless, you've still made one of the smartest comments on this piece and I'm happy to defend the claims I've made in the article.