It was a shocker to me to find out how people from Christedom are not afraid to debate people like Sam Harris, the late Hitchens, Dawkins, etc... they actually defend Jesus and his resurrection, hell fire, God's existence, all the main doctrines that form Christianity.
Funny how I recall my father (an elder) debating for almost 2 hours his brother in-law (a Christian) he was proving how the 144,000 is literal. But when he was pressed to produce evidence at how is it possible that only JW's are part of the elite 144k, my dad went silent and ended the conversation. This was the beginning of my awakening!
That is the reason why the WT leaders do not debate, because it would cause many JW's to wake up to TTATT.