Well it was more or less a matter of time before the Liberation Theology got mentioned.
Yes the Liberation Theology is progressive when it is feilded in it's libertarian (yes, there where currents more akin to anarchist and democratic socialism than Marxism thanks to Tolstoy and Thomas Moore and Proudhon) format.
However the nobody wants to oppose God business is of key, I wouldnt want a tolerant religious authority and more than I would want an intolerant one, all throught the bible there are references to regarding diversity and difference as no bad thing (something a lot of right wing "christians" must have missed) and the "dont judge" message is hammered in to be truly Christian - socialist you must renounce religion publicly, well dont renounce it but embrace secularity and humanism.
There is no other way to fight oppression regardless of the author or victim but then in fulfilling this calling your also fufilling any Christian impulse you might have.
I've got very good references to books on LT if anyones interested, unfortunatly they are more or less out of print since the sixties when a real book fest of lefty literature tookl place and then died off, the same is happening today with propertarianism and they'll die of too.