so it is clearly impossible to present any reasons for the abandonment or 1914 CE which marked the end of the Gentile Times and the birth of God's Kingdom.
The Gentile Times have not ended. They will end when Jesus comes back. (He 'aint back yet ..."every eye will see him")
This is the very core of WT error. But, they can never say that the Gentile Times are still going on because this is the fundamental rationale for rejecting the New Covenant "for forgiveness of sins" (Mt. 26: 27-28)
They will ride 1914 to their end.