Rush Limbaugh references offend you, huh? How utterly unpredictable.
That's a very weak point, considering that the first two were party line votes, and Roberts got about half the 'Rat votes. Sure, if those seats were held by communist 'rats, the vote would probably have gone the other way. But communist 'rat isn't the only alternative to socialist RINO. Until folks like you realise that, though, we're going to be awash in socialist RINOS.
You see, this is where you get into trouble: RINOs aren't socialists. (I'll type slowly.) They are liberal on social issues and staunch capitalists economically. They are generally opposed to wealth redistribution. They are for tax cuts. They are pro-wealth. They are pro-corporations. They are for school choice, vouchers, enterprise zones, repealing the death tax and almost all of them are in favor of outlawing partial-birth abortions (off-topic but true).
Socialism is what modern Democrats espouse. It isn't what RINOs espouse, and it's the primary difference between them, because on social issues they are frequently indistinguishable from one another.
Due to their capitalist bent (and coupled with their pro-military stances) they are preferable to Democrats. Since they are preferable to Democrats in these areas, conservatives should vote for them if the choice is between the two in order to deny Democrats the platform to implement their twisted Socialist vision for America.
Gee, you've got it all figured out... everybody in a nice, neat little cubbyhole. All I gotta do is drink your Kool-Aid. It's a very comfortable alternative to thinking. Too bad it's all so thoroughly wrong.