I think there’s some truth to what Boettke is saying.
An idea I’ve been toying with is “intellectual agnosticism”: non-experts should not hold strong opinions. As Rothbard wrote:
“It is no crime to be ignorant of economics, which is, after all, a specialized discipline and one that most people consider to be a ‘dismal science.’ But it is totally irresponsible to have a loud and vociferous opinion on economic subjects while remaining in this state of ignorance.”
Political philosophy and economics are specialized disciplines, and laymen have no business holding strong opinions on these topics.
Of course, this raises the question: who is an expert? We don’t want an overly restrictive definition, so I would say you’re entitled to hold strong opinions if (1) you’re familiar with the relevant literature, and (2) you can give a charitable representation of the different positions.
In most scientific disciplines, we accept that research and debate should be left to the experts. But in economics and political philosophy nearly everyone has their own pet theory. For instance, I’ll bet no one cares about whether ancient Sumeria was a matriarchal or a patriarchal society. But people hold strong opinions on the minimum wage, progressive taxation, free trade, etc. The obvious response is that the latter debates have practical effects on people’s lives, while the former does not.
So there’s this tension: On the one hand, people are significantly affected by the economic and political policies they live under, and so should be able to determine those policies. But on the other hand, politics and economics are still specialized disciplines, and it’s irresponsible for people to hold strong opinions while remaining in a state of ignorance.
Getting back to the topic at hand…
I would say that if you’re familiar with the literature and have a keen understanding of their position, you’re entitled to challenge them. But if you’re still in a state of ignorance, you need to get back to hitting the books.