"If your salary is paid from the taxes of those of us who do work for money, maybe don't bite the hand that feeds you?"
He didn't bite you. He wasn't rude. He didn't call you stupid.
If his post stung, or caused you to feel stupid, perhaps deep down you feel there's another way of life that might suit you better. This is a wonderful opportunity for you to re-assess priorities and perhaps try another path. Seriously.