I do not agree that the essay is incoherent, the general line of thought is very clear: Independently of left or right, conformists of the passive, aggressive, or passive aggressive variety can ruin societies and free thinking.

Conformists can also easily switch sides.

Indeed the insertion of Silicon Valley was a bit unnecessary. They are ruthless capitalists that currently pretend to be socialist for profit and hiring motives as well as suppressing weak software developers by confusing them with new ideologies every week.