In their haste to oust Obama, the GOP establishment is willing to put forth a bad argument for conservativism (Santorum/Romney/Gingrich). Should their choice win, a big-government, fiscally irresponsible "conservative" will not be able to turn things around and demonstrate to the electorate that conservativism is the right course for our nation; as a result, the electorate will give more chances to Obama-like politicians. I've heard it said in philosophy that a bad argument for your position is worse than a good argument for an opposing position. By no means am I saying I'd prefer Obama to Santorum/Romney/Gingrich, I'm voting for Paul no matter what, but just that the GOP should consider how many more Obamas another failed faux-conservative presidency will create. That said, never heard of Dana Loesch before, she sounds like a female Levin.
tl;dr Another Bush will create more Obamas