That’s evidence for some people having more than a knee jerk response, it’s far from statistically saying it’s the most common rationale. Smart people are also amazing at having a knee jerk reaction and then making it sound well reasoned with clever arguments.
I agree its not just a knee jerk reaction, and I know I don’t have a good basis for how many are knee jerk vs rationalised but I do know I’ve been around plenty of people that seem to have a knee jerk reaction and plenty that demonise the culture, hell half the world is being bullied not to have windmills and some of that is blanket anything green is dumb