I think his point was that OP did exactly that, and found that the 'AAs already have his legislator firmly in their pocket. It's like that scene at the end of Invasion of the Body Snatchers, where the chick is all relieved to see someone she knows and trusts, only to realize too late that he has already been converted.
I also absolutely hate the phrase, "Do something!" or "Get involved!" in regards to politics or causes in general. It's absolutely useless. People already know that they want to do something, they want to know what they can do that will actually have an effect on the outcome, preferably with tutorials, lessons learned, etc. Harassing already-bought politicians does not fall into that category.