   It's difficult to say. Liberal critics maintain that we are simply not in good epistemic position to judge the reasons an agent would have to support laws that protect basic liberal commitments were he better informed and more reasonable. More exactly, liberal critics maintain that we are not in a good epistemic position to determine whether a secular agent who is reasonable and better informed would endorse or reject the type of theistic commitments that philosophers such as Wolterstorff claim justify the ascription of natural human rights. The problem is that we don't really have any idea how radically a person would change his views were he to occupy these conditions. The main, and still unresolved, question for this version of the standard view, then, is whether there is some coherent and non-arbitrary construal of the relevant counterfactual conditions that is strong enough to prohibit exclusive reliance on religious reasons but weak enough to allow for the justification of basic liberal commitments.  (See Vallier 2014 for the most recent and sophisticated  attempt to specify those counterfactual conditions.)