Good points. However, the truth is both malleable and ephemeral to the Democrats and the True Believers.
“Again: President Trump should be warning the public often about the Biden replacement switcheroo planned by Democrats. His public predictions will make Democrats deny it thereby making the eventual replacement of Biden even more difficult for dems. For one thing, dems will have to admit Trump was right all along and they (dems) were lying.”
This would help, but there’s an easy workaround.
Medical.
Regardless, it’s not Biden’s choice. And it is not the DNC’s choice. It is Biden’s team’s choice. It is their little niche of the Deep State that is at risk if he is replaced, and with his polling within 1 or 2%, they can fight off any replacement.