The difference between guns and climate change

It seems to me that when liberals draw on particularized knowledge (say, of science) to make the case for certain policies (say, regarding climate change), they're accused of pointy-headedness, tyranny by bureaucracy, and general elitism.

When conservatives draw on particularized knowledge - such as with guns - they're more "in touch with the people" and keepin' it real. This, coincidentally, lets them try to shut down conversations about gun regulations because folks on the left lack a certain expertise regarding the details of the issue. 

A bit of an epistemic closure problem I'm not sure how to resolve, except to note the hypocrisy.

 Anyway, one doesn't have to have particularized knowledge of guns or how they work, specifically, to note that just one man killed 59 people and wounded more than 500 more in just a matter of minutes the other night, nor to sense that perhaps something's amiss in our governance that apparently gathering the tools to commit massacre was done so easily.