Your post did not really indicate you were looking for an answer to be posted. I presumed you were asking rhetorical questions to try and get myself and/or others to justify or at least think about our position. But since you asked.. :)
If defending 'ecclesiatic privilege'allows a child molester to go free and other children to be put at risk, is there moral and ethical basis for doing so?
Personally I am against this antiquated, ill thought out 'loop hole'. However I am against singling out the JWs. If other religions can claim it I feel the WTBS is somewhat justified LEGALLY. Morally is another issue. Morality however is not usually fought in the courts.
Morally, if they were indeed God's chosen people, one would think they would go above and beyond what other religions are doing in order to protect the flock, especially defenceless children.
Could you look yourself in the mirror if you were responsible for a legal action that caused a child to be raped?
Simplistic hypothetical situation, for which I cannot and will not provide an answer. There are far too many possibilities. I will say however that I would always do what I could to protect a child if it was within my ability to do so.
Kismet