[familyop]

"The death of President George H. W. Bush provided liberals and their Fredocon houseboys yet another opportunity to lament the fact that all Republicans aren’t dead."

So all Republicans are alive. That's true, although the author--a little short on English--meant to say that not all Republicans are dead.

[exDemMom]

No, the author was saying that the left is upset that not all Republicans are dead. Or, to put another way, the left is upset that some Republicans are alive.