Sadly I think the Biden case is very relevant to this story.
Democrats hid President Biden away for months, but they couldn't hide his disasterous "I defeated Medicare" debate performance. Do you remember what it was like in the months after that? I remember being so anxious watching Biden public appearances, hoping he doesn't make a fool of himself. And then when he inevitably flubbed, I remember feeling such deep dread, thinking "oh God, Trump is going to be president again".
As the Republicans begin to give Trump the "Weekend at Bernie's" treatment, Democratic criticism will not land as hard because we have so much footage of Dems standing behind Biden during his serious cognitive decline.
Prepare yourself for "it's just a stutter"-type memes.
Zionism is Nazism.
All of the major elements are there:
The one significant difference is that Hitler had totalitarian control, whereas Bibi does not (yet). Netanyahu still has a coalition to appease, and occasionally must make concessions to less-genocidal factions in his government.