That's a bit of a strawman of their thinking. It's closer to, "we don't know enough, so we need to be very careful about creating policies that are economically destructive to entire industries (and subsequently industries that depend on those) that depend on cheap energy. It's not common for me to hear people claim that they are certain that the climate research is completely wrong, it's usually that the feel the evidence isn't strong enough to make such broad changes to how the world's economy functions.

It's a much easier perspective to understand when you realize how many of these peoples' lives are directly tied to oil/gas/aviation/etc. Assuming complete stupidity or malice on their part does very little to advance the argument or accomplish anything in general other than feeling good about yourself.