Kaczynski was just a dedicated psycho whose only hack was to show how hard it can be for society to deal with people like him. He may have dicked around with math a little but to call him "brilliant" is a mistake along the lines of Clarke's third law.
Tell that to the families? Traces of sarcasm aside, police analysis showed him to have intelligence significantly above average. Sorry if you have a loftier value for the word 'brilliant'.
Anarcho-primitivism is a odd ideal for someone posting on a technology site.