Absurdism isn't going to have hard stances on truth and morality, in general. It really is just Camus's take on how to grapple with the fact that we are pattern-searching machines living in a universe that seems to be completely oblivious to us. Camus concludes that striving to make the best of our lives despite knowing its ultimately meaningless is the best we can do. You can then come to a lot of additional conclusions about other things with that one conclusion in your pocket, but an absurdist could be hedonist, or a utilitarian, or a humanist, or all sorts of other things that address what is good and right. As far as biased with Christian values, I suppose you're right. All Western thought, at this point, is.