I realize that you think you’re approaching this fairly. But by allaying this kind of thinking to pretty much everyone who agrees with Santorum (not on the politics of what he says, but on what he says he believes), you deny that anyone can have an opinion based solely on the argument (contraception is good, is not good) itself. There will always be hypocrites, but surely you’ll admit they’re not the only folks arguing against contraception (or, for that matter, abortion or divorce). Is it a good, an evil, a neutral factor? for individuals, for society as a whole? for the children who survive it? for the economy, for the national defense? And the list could go on and on. There are objective ways to look at it and to measure its effects whether or not the arguers are happily married. No?
You are not following my argument at all. You are confusing what I said about the contraception issue with what I said (generalizing, and tweaking, and it surely did tweak) folks on the issue of infidelity.
Until you can straighten those two VERY DIFFERENT issues in your mind, we have nothing to chat about.