SAUL ALINSKY’S 12 RULES FOR RADICALS
You exhibited the use of two.
RULE 12: Pick the target, freeze it, personalize it, and polarize it.” Cut off the support network and isolate the target from sympathy. Go after people and not institutions; people hurt faster than institutions. (This is cruel but very effective. Direct, personalized criticism and ridicule works.)
and
RULE 2: “Never go outside the expertise of your people.” It results in confusion, fear, and retreat. Feeling secure adds to the backbone of anyone. (Organizations under attack wonder why radicals don’t address the “real” issues. This is why. They avoid things with which they have no knowledge.)
You took the time to "respond" yet could find no words to challenge his assertions, they were beyond your expertise, you have no knowledge of them or a valid response.