Hacker culture was originally predominantly skeptics, the type that resist authority and think for themselves. Over time, the original hackers were diluted to the point of being on the margins of the tech scene. This happens to all subcultures that become 'cool'.

So, once programming became more established it found a wider audience, and a certain type of risk intolerant, rigid minded person became attracted to the scene, due to the structured nature of programming. These people and others of similar thinking are the least likely to consider they are wrong, and are the ones so opposed to anything that challenges the narrative they've been telling themselves.

The number of people willing to skeptically challenge prevailing opinions has always been fairly low. Most of the people I know want the comfort of absolute belief, even the nonreligious people.

I've worked with hundreds of developers and this has been my experience. Think of this anecdote what you will.