I wish these activists put more effort into making a proper dialogue and requesting more reproducible results, instead of trying to discredit people speaking in defense of science. It's not like there aren't valid complaints about transparency and corporate involvement. The bigger problem is that tampering and misrepresenting data is surprisingly common in all profitable science (GM included). Medical science, for instance, had a study in 2012 find 47 of 53 medical papers weren't reproducible (wikipedia, study). The thing is, of the people who speak out and try to reach the public, almost all of them aren't doing the disingenuous research. It's hard to take these movements seriously when they spend more time going out of their way to be contrary than actually pushing for some form of reasonable change.