Goodness me, Santorum is NOT a Christian Socialist, not even close.
He was one of the more conservative senators in the Senate on multiple fronts. But not a pure free markets guy.
He’s more like a Pat Buchanan lite.
I still think it is the best way to think about Santorum - it explains his funny (in the American context) combination of big government social conservatism, explicit hostility to libertarianism and the separation of Church and state, and support for unions. He's not only not a pure free markets guy, he's not any kind of friend of liberty.
Monty Python wrote of the dead parrot pining for the fjords, Santorum always seems to me to be pining for Pio Nono.
He does share a good deal with Buchanan, including jumping the shark, though I haven't detected the hints of antisemitism in Santorum one gets with Buchanan.
That's one of the silliest contentions I've heard. Santorum is a SoCon O N L Y. And that does not make him a Conservative. Otherwise the Bush's would have been Conservatives.