It might seem too unreasonable for the first suggestion to go after the tax exemption. There is too much that can be done to finangle books and activities so they qualify - and it doesn't get to the root of the issue....
It would be more effective to recommend:
1) that all volunteers with any sort of responsibility - pioneer, ministerial servant, elder, etc be required to have a background check.
2) requiring elders to report to the authorities all known abuse regardless of how they came to be aware of it - confession or reports from parents/victims and without regard to how long it had been since the alleged incident(s) happened.
3) all who are known offenders - through their own confession or through conviction by a court - be made known in every congregation - like a known offender list - made available through the elders, or the branch - maybe even on JW.org in some discreet way.
my 2 cents
bafh