It won't come to this because Biden isn't running. Biden has dementia and it's much worse that anyone lets on. On know it may come as a surprise, but the government and the media are lying about his health.
The Hiroshima summit is the epitome of this; if the whole world was blind to Biden's mental troubles before, they cannot remain so now.
There are two possibilities. One is that the Democrats will use the embarrassment of Hiroshima G7 to move to have Biden 25th amendmented from the Presidency. The other is that they will do nothing, and let him run next year, just to prove they can run anyone and win. If they do the latter, it will be spitting in the face of America, but that is something they do on a regular basis.
They’ll use just enough formaldehyde as it takes to keep Biteme on the ballot at the start of the primaries so he can drop out in order for the Dim party to be “saved” by Moochelle, the reluctant, selfless, but brave candidate.