they can figure down to the last atom, how the universe was formed and what happened before, during and after the big bang, including any other membranes, strings and other universes....
but there is know way of making a cogent argument against the existence of a creator....or proof that there is for that matter. it is faith and there is no way to measure it.
why cant they just keep their (lack of)believe system to themselves unless they have solid proof...which they can’t.
Objectivity points to God from every angle.
One must get very subjective to write God out of his creation.