Are Extremists Trying to Simplify a World They Find Too Complex?

An interesting (but, I suspect, very likely to incense sections of the media) study has been published by Dr Leor Zmigrod et al. of Cambridge University (https://www.theguardian.com/science/2021/feb/22/people-with-extremist-views-less-able-to-do-complex-mental-tasks-research-suggests). Their study was carried out on 330 US-based participants, between 22 and 63 years of age. Over a 2 week period, their subjects had to perform almost 40 'neutral' neuropsychological tasks and completed more than 20 personality surveys. The results showed that "Individuals or brains that struggle to process and plan complex action sequences, may be more drawn to extreme ideologies". This is powerful stuff, as it essentially claims that, people who find the world challenging, are more likely to epouse dogmatic (extremist) beliefs (and vice versa?)! Zmigrod et al. also suggest, that people who find the neuropsychological tasks more difficult, would be easier to radicalise. There is, of course, the thorny question of what counts as an 'extremist view'. Are some 'extremist views' more acceptable than others?