Being an atheist I don't buy the God argument either, but Rands is in my mind simply taking the opposite extreme in her attempt to get out of meta land and by doing so becomes religious herself.
I don't believe it's possible to talk about one moral being more correct than another. (i.e. there is in my opinion no rational argument for a correct moral as everything is context dependent)
For instance if just some of the things that the transhumanists believe come true (such as close to eternal life) then obviously it's going to change the context of morals.
But I do believe some morals in a certain context are better than others. That doesn't mean I believe they are more correct simply that I accept them as a better model for co-existence than others.
Being an atheist I don't buy the God argument either, but Rands is in my mind simply taking the opposite extreme in her attempt to get out of meta land and by doing so becomes religious herself.