Earlier quoted context omitted.
Caitlyn Johnstone is a 9/11 truther, and not representative of any 'foreign policy establishment', imagined or otherwise.
Fwiw, she is criticizing someone advocating this policy if you read the article. EDIT: I should mention I do not necessarily endorse her views with respect to 9/11.
As a UK citizen, the implication that Britain was involved in poisoning its own citizens is not unlike how many Americans feel about '9/11 was a false flag'.