Of course Republicans and Conservatives have the right to advocate and be involved with the political process. The problem is that they keep secrets. They hide their ambitions, their true agenda, and instead of advocating a moral or reasonable policy, they offer an advertising campaign that "Sells" a policy that advocates for it's true "secret" agenda.
Mr. Phillips refused to say who he's working for. Mr. Obama hurt himself politically because he told us (leaked is the beltway speak) that he had cut a deal with Big Pharma. Mr. Phillips UNDERSTANDS the political damage that would ensue if his "grassroots" campaign was exposed to the same spotlight. It would become known immediately that he is simply shilling for the health care insurance industry and the Republican Party's national committee. In order to win politically, he must keep his real constituency, and his true agenda secret.
They keep secrets. They use advertising campaigns to "sell" policy positions. They convince the real grassroots to advocate AGAINST their own interest.