In fact, they're worse than useless, because in practice they don't implement conservatism, they serve only to dissipate any national impulse toward what is principled, and conservative, and constitutional, and right.
They claim to be a "pro-life" party, and yet, even when they control the government, they don't lift a finger to keep their oaths to provide equal protection for posterity.
They claim to be "pro-family," but don't do a thing to restore and protect the essential institution of marriage, as defined by God and nature.
They claim to support our right to keep and bear arms, but don't make a peep when some federal judge infringes that right.
They claim to support border security, but when they're in power, the border remains wide open.
They campaign incessantly on "smaller government," and yet, somehow, even when when they "win," the size of government continues to grow exponentially.
They decry government debt, and then spend like drunken Democrats.
They run against socialized medicine, and then, when given the purse strings, they fully fund said unconstitutional usurpations for years on end. They truly do think they can do socialism better than the Democrats. Just what do you think "repeal and replace" means, anyhow?
It's an old joke, but it remains consistently true: In Washington, DC, the Democrats propose to tear down the Washington Monument, and the Republicans respond with a sensible plan to do it in three stages.
It's far past time for us to shake free of these two corrupt political parties, and to become, in fact, partisans only for principle. Throw them on the ash heap of history, where they belong.
Either we do that, and soon, or we will have completely squandered the precious inheritance of our children and grandchildren.