That is a blatant generalization and I doubt you could prove it.They generally do not vote on any other issue if they have a candidate that will promote those two issues.
McCain was hardly a member of the so-called "religious right", and neither is a single Supreme Court Justice. Conservative =/= evangelical.Obama's election took a little out of the sail....because they thought that with another GOP President pushing their agenda, they could stack the Supreme Court.
I don't think the agenda you speak of even exists.With Obama having at least 1 more and potentially 2 more nominees within his first term, it is unlikely they will be able to accomplish this anytime soon.
Still....they have indicated that they will stay home and not vote if the GOP candidate is not strongly in favor of this agenda. I'm not so sure that the GOP is willing to test them at their word.