This is the broad sweep, but to the Lord a thousand years is as a day.
We can’t pontificate from this to small scale phenomena. Israel got a good government every now and then even though in the long term it slumped down.
Trump won’t save all eternity. He could very well save a period of a better part of a century.
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Your belief is obviously in man.
The word of God refutes everything you have ever offered.
(I’m sure this is approaching an infinite loop)