I don’t see it that way. The Rats are not going to die, they may go down for a bit, then come back. Everything the Rats do is a strategic moving of the goal posts. They push the envelope, create a new precedent. That’s the difference between progressives and conservatives. They don’t want to conserve anything, they want to destroy and rebuild.
So this move, just means that when they are in power again, they wont give one s**t about eliminating the filibuster, or packing the court, or..., or ...
That is just how the operate.
“The Rats are not going to die”
I don’t think they are going anywhere, either. But, I do think that they are aware they are losing this year, and they are going to try everything they can to avoid it.