If I were more of a bastard, I'd take to trolling the most knee-jerk and frantic papal defenders out there. Not merely the people who give Francis the benefit of the doubt, but the people who feign innocent shock that anyway could possibly misunderstand the holy father, tut tut, shouldn't you know better than to take what he says at face value.
A good way to do it would be to just demand they explain how this or that quote from the Pope, from some foreign newspaper, could possibly be squared with Church teaching. And once they bend over backwards to reinterpret whatever you provide them in a way that makes it clear the Pope -obviously- meant something totally orthodox by that, you stop and go, 'Oops, hold on. That was actually a quote by Ayn Rand/Joseph Stalin/Anton LeVay. I got things mixed up. Anyway, you were saying?'
I have zero doubt that I'd find people explaining that of -course- this particular tract from Ayn Rand's Playboy interview was like, straight out of the Catechism, goodness gracious don't people even read their own church's documents nowadays?