Hahaha. I'm sorry, are you under the impression that what God does is bounded by what man will accept or not accept? Because that doesn't sound like the God I or any other Christians worship. Even when the Israelites had gone completely off the rails and were bowing down to the golden calf and doing all other kinds of nonsense, it would be inappropriate in the extreme to say that "he could not persuade this small nation to be His people". There is an element of
struggling with God, as Jacob did, found in every religious tradition that claims Abraham, but this is different than saying "God tried and failed", which is basically what you are saying by phrasing things as though God is just a bad persuader or something. He doesn't need to persuade anyone. Moses tried to approach Him according to his own understanding and was told (not asked, told) to remove his sandals, because he was standing upon holy ground. This is why we remove our shoes before entering any Orthodox church, because that too is holy ground. The Lord is present there.
That is the God I worship. The creator and pantocrator of the universe. Your mileage may vary.
So how to answer your question, then...hmmm...well, considering that you are wrong that "God could not persuade them", I would then say you are wrong that God is a weak God. That some people use their free will to follow after other gods -- as Mormons most definitely do -- is not a reflection on God, but on those people, and those people will then face the consequences at the appointed time.
The difference between this and Mormonism's restoration fantasies is that we as Christians believe that Christ's coming, preaching, performing miracles, manifesting the Lord before all of His people, and at the appointed time giving up His life of His own will upon the holy wood the life-giving cross is the salvation and transformation of all. So there is nothing to be 'restored', because there is nothing that has been lost or is otherwise defective in Christ's once-and-for-all perfect victory over death, by which any who are saved are saved. He doesn't "un-rise" from the dead because some people after Him are bad people. That's just ridiculous. And all the proof-texting in the world of the various verses in the NT that indicate that some will apostasize from the faith do nothing to undo that, either, because, again, there is no logical reason why Mormonism should be taken as
evidence of that apostasy, rather than the antidote to it.
You are not Israel and what happened to ancient Israel really has no bearing on Mormonism, as Mormonism is an entirely different religion, born in the religious environment of the United States in the 1820s and 1830s. You are free to project your nonsense back through time as far as you'd like, but as the entire point of this thread is to show a piece of
actually existing evidence that LDS claims against historical Christianity are wrong, the utter lack of corresponding real-world evidence on the Mormon side (since of course Mormonism didn't exist in the 5th-6th century, because of the 'great apostasy') is telling.
Basically, it's your
nothing versus our
everything, and you want them to be equated in terms of evidentiary value, because if they're not, your entire religion crumbles to dust.
Well...ya better go rent a backhoe or something to transport the giant pile of dust that was your religion out of the arena of ideas forever, because it doesn't belong here with people whose religion does not rely on an alternate history narrative of which there is absolutely zero proof beyond "Well what about happened to these other people?" (which is not proof at all; it's just conjecture and
begging the question.)