Here’s the thing -
Let’s say this is all a completely different campaign and your selected candidate is lagging in the polls. What SHOULD you do, under normal circumstances?
Well, you’d campaign harder. Promote him more. Hold more events and rallies. Flood the airwaves with his accomplishments or ideas.
The reason they want Biden out is, one, they can’t do this. No amount of polishing the turd is going to work. But the other is, they didn’t think they would NEED to. Trump was supposed to lose so much support that it wouldn’t matter.
They’re wanting to dump him NOT because they realize he’s senile - they want to dump him because they don’t see a path to winning with the demented candidate they backed. If his polls had miraculously picked up - they wouldn’t be saying a thing.