It could also be that the ones who are against something are always more vocal.
Tesla is another great example. Ordinarily, self serving research by a corporation is dismissed as junk science or "misinformation." But let Tesla publish survey results [1] to argue their end of a regulatory dispute and that view ricochets around the progressive echo chamber as though a voice from the sky had spoken The Word, Tesla of course being the golden boy of anti-fossil fuel group thinkers.
The sudden concern for the consequences of stopping these big trade deals is nothing more than partisanship. Pretend otherwise if you wish, but it's dead either way and the world is better for it. Thank you President Elect Trump.
[1] http://venturebeat.com/2016/11/11/tesla-autopilot-germany/