Those are pseudo-science articles, and uninformed blog posts. They do not subject themselves to peer review nor to they provide transparency. Most of them don't even provide any good evidence. Among the people that do perform proper scientific research, there is a consensus. And while a consensus does not equal proof, a consensus among such educated and well researched peoples should be taken very very serious by lawmakers and the public in general.
Unfortunately anti-intellectualism has been a constant thread winding its way through our political and cultural life, nurtured by the false notion that democracy means that my ignorance is just as good as your knowledge.