I think it's just great that the arrogant left* has discovered libertarianism as the enemy. It means they know what they aren't and it means we're closer to winning.
It's also worth noting, I suppose, that there's a lot of confusion between objectivist (not leftist) and libertarian (the other not leftist.) The author unsurprisingly collectivizes everyone who is "not us" (and, in this particular context, not mainstream Republican, either.)
*FWIW, the right have always been aware of us, and they've been so afraid of us, that they've always agreed with the left that we're "far right."