Who needs pushback when the bill is DOA? It will never go anywhere. It’s more fecal material for the media fan.
Any member, or members can propose a bill on anything he or she wants. That doesn’t mean it’s going anywhere. Every Congress there’s a bill proposing reparations for slavery—so what? There doesn’t mean there has to be any sort of pushback on what is a publicity stunt.
The 25th Amendment was created as a way to deal with a series of nightmare “what ifs” in the nuclear age. What if Kennedy’s headshot wasn’t fatal, but had left him totally incapacitated, or if a President were to go insane?
The amendment provides a mechanism through the VP and Cabinet to deal with this but allows for another group to make the call if Congress passes a law providing for it. The Dems’ bill is to try to create this other group.
The problem for the Dems is that the writers of the 25th did their best to make it ‘coup proof’ and built in safeguards to prevent what the Dems would like to see happen.