I am aware, and it’s good you brought this up. All sides are gullible, but some perhaps more than others. Although, the very study you posted a link to states clearly that other studies have had mixed results. Are you posting this one because, as a political scientist, you know the field and studies referenced and can assert with confidence acquired through disciplined study that this work provides better proof that conservatives are indeed more gullible (where other studies failed), or are you posting it because it appears to confirm your a priori views of conservatives?
Apart from the actual truth of the matter, I made my comment above because I believe that looking down on conservative concerns and viewpoints - something that is naturally aided by any perceptions of conservatives as gullible simpletons - has not served liberals well. In fact, it’s something that right wing populists have been able to exploit quite well to gain the sympathy and ultimately the vote of large swathes of said simpletons.
Hmm well if you don’t mind a bit of unsolicited advice, I would say that (from the frustrations you express) maybe you, like most of us, enter discussions online with a mind to convince others of the absolute truth of what you believe in. It is actually more productive to listen to them, then ask why they feel the way they do about certain topics, and then try to see if you can find common ground with them. Only then can you perhaps influence their views a little. But if you are earnest about the exchange, you must allow them to influence you too.
I know that’s hard, I fail often myself and become frustrated.
Of course there are conspiracy theories and falsehoods that are absolutely bonkers and it stymies me too why some people will gobble it all up, but a wise person is never too sure of their own truths either. Funny thing is we are all biased one way or another, we just tend to be blind to our own biases. Of course some truths are supported by more evidence than others, but especially when it comes to politics it is less about the absolute truth of a matter than it is about adopting a particular perspective. No single perspective is more valid than others inherently. It is all just ways of looking at things. Of course one can try and come up with objective criteria, but that too is quite hard.