As you can see, “low-effort thinking” promotes conservative responses and ideation, even in liberals. Booze helped too. They gave subjects booze to drink, and the drunker they got, the more conservative their responses tended to be. This was true even in liberals. It’s well known that booze makes you stupid the more of it you drink.
It also suggests that conservatism is the default ideology in man, since our quickest and least thought out opinions are likely to be conservative. Which is why mankind wallowed under monarchism, feudalism, slavery, neofeudalism, fascism, rightwing dictatorships and now neoliberalism other forms of the rule of the richest and tiniest elites for so long. People weren’t thinking much, so their default response was just to accept these most backwards, primitive and brutal ways of living.
The only way people get to be liberals or progressives is if they actually start thinking about things a little bit. Since this is not the human tendency, we will always fight rearguard battles against ill-thought out philosophies like conservatism.