Oh it's so not easy - this waking up when you love your spouse dearly but they are devout.
Don't rush, don't blurt out things that can come back and be used against you by those your husband in all sincerity seeks help from.
Rather than attack "God" - how about inconsistencies in the literature that has made it impossible for you to trust "imperfect men" anymore.
Go on jwfacts to find some real beauties.
The "overlapping generation" is dealt with using the WT literature and scripture to great effect. ONLY USE WT literature and the Bible - no reference to "apostate websites" or the "apostate sources card" will trump the truth you tell and close you down.
Another:
Remember at the convention that hate filled video where the scandinavian young woman is forced back to Jehovah by her deluded parents whose father scowls at her contemptuously across the KH when she is df'd and ignored when she phones her mother?
Now look up on jaydubya dotorg under FAQ's about "do JW's shun?" and see how it is portrayed there and ask your husband to explain why one thing is portrayed on the website and another at the convention?
Stick to WT literature, take your time, cross your fingers and hope for the best.
Oh and seek advice here! There are some crazies but most of us understand completely and want to help.
Freddo
P.S. You can trust "The Searcher" - he knows his stuff!