I'm not/never been a JW, but if they say that "Jah is using the RC to make change," would that not give you an opening to bring up the Catholic abuse scandal?? For example, the current Pope, Francis, is actually talking reform in his church. Hmmm, is Jehovah guiding him directly? Why does he not guide the Gov Body in a similar way? Instead of using the RC to do so?
If nothing else, that should get the 'J-dub's' head spinning.