There is basic left-liberal concept at work that is PRE-DISPOSED to denying science. And it's FUNDAMENTAL to the difference in thinking between the left and the right. And that is the belief that the left can legislate EVERYTHING in life to be 'risk-free'.
The fundamental difference is that the right lies about the left at every opportunity, and feels no guilt whatsoever over doing so, being that "the ends always justify the means for my own side" is the only moral standard they possess.
Needless to say, nobody on the left thinks like that. Righties make up stories like that to deflect from their current open science denial and environmental rape. It used to be that a conservative could be an environmentalist, but not any more. They're all now science deniers and environment-rapers. TheParty told the conservative environmentalists to start mouthing the party line or be cast out, and so they all rolled over and showed their bellies and begged not to be kicked. Now, they all sing the praises of every bit of pseudoscience their party passes down, and constantly make excuses as to why the latest environmental travesty is really a wonderful thing.
they won't ACCEPT that ANY detectable level of pollutant or poison is benign.
Such a vivid imagination, and he's putting it to work in service of his anti-science cult.