It's only true because we allow them to get away with saying one thing and doing another. The Pub party has no discipline. Collins, Murkowski, McCain and others get away with not fulfilling Party promises because they are never held to account by the party or the voters. The only way to change that is to hold the party accountable.
“Now, there's one thing you might have noticed I don't complain about: politicians. Everybody complains about politicians. Everybody says they suck. Well, where do people think these politicians come from? They don't fall out of the sky. They don't pass through a membrane from another reality. They come from American parents and American families, American homes, American schools, American churches, American businesses and American universities, and they are elected by American citizens. This is the best we can do folks. This is what we have to offer. It's what our system produces: Garbage in, garbage out. If you have selfish, ignorant citizens, you're going to get selfish, ignorant leaders. Term limits ain't going to do any good; you're just going to end up with a brand new bunch of selfish, ignorant Americans. So, maybe, maybe, maybe, it's not the politicians who suck. Maybe something else sucks around here... like, the public. Yeah, the public sucks. There's a nice campaign slogan for somebody: 'The Public Sucks. F*ck Hope.” - George Carlin