You can't destroy the logic of the kingdom starting rule in 1914 because it is logical.
2 Samuel 7
(Thisi s one scripture that shows that true prophets can be wrong. "Nathan replied to the king: “Go and do whatever is in your heart, for Jehovah is with you ". Nathan was wrong.)
12 When your days come to an end+ and you are laid to rest with your forefathers, then I will raise up your offspring* after you, your own son,* and I will firmly establish his kingdom.+ 13 He is the one who will build a house for my name,+ and I will firmly establish the throne of his kingdom forever.+ 14 I will become his father, and he will become my son.+ When he does wrong, I will reprove him with the rod of men and with the strokes of the sons of men.*+ 15 My loyal love will not be taken away from him the way I took it away from Saul,+ whom I removed from before you. 16 Your house and your kingdom will be secure forever before you; your throne will be firmly established forever.”’
But yet David's kingdom was not secure forever. His offspring lost its sovereignty at 607 when Jehoiakim was made a vassel king of Babylon. And Jesus came and went but never took the throne. Something must have changed. That is where Daniel 4 comes in. The kingdom was paused for 2520 years from 607 to 1914.
This teaching preceeded Russell. It was Barbour that messed up the timetable. Not everything that is from the Bilble and Russellites adopted is wrong.
The issue is: Does the establishment of the kingdom in heaven require a cult like group? Why does the kingdom require 100 years of satan's having earth as a playground, which is contrary to God being love.