It's not that harsh. He wrote some good things in the past, but his recent essays are very simple minded and anti-scientific. You can't categorize people like you are in a middle school and be taken seriously, human behavior is very complex, no one can be "conventional- or independent-minded", it's always both simultaneously or rather neither, as those ideas don't describe human behavior even to a slightest degree. I get that in the US people are used to the idea of classifying everyone into simple buckets, given how political propaganda there divides people into classes, like democrats and republicans, etc., so pg is comfortable with such idea, but it doesn't make it less of a nonsense.