Maybe you just didn't get it? How far did you make it through the article before you decided it was invalid?
As someone on the spectrum, this actually expanded on some of my own observations. For a large portion of society, much of what they do and say is driven by posturing. This posturing is driven by insecurity. It is especially predominant in the upper-middle class.
Spock said it best, humans are highly illogical. They don't say what they mean. They spend significant resources on posturing, trying to reassure themselves of their standing by convincing their peers.
This article probably isn't going to lead to epiphanies in many of the groups mentioned. It seems intentionally inflammatory, which will cause individuals with the described behaviour to become defensive.