I kinda think grounding the rhetoric serves a better purpose. He isn’t a moron, but an opportunist. He serves the foolish need of Democrats, to appeal to center by having opposing point of views. There are videos of Biden in the 80s, presenting him self in a similar way to Munchin... ‘when they say Democrats are coming for your guns, point to me’... which is a problem.
Liz Cheney was the last remnant of those 80s republicans, while being ousted as a neocon. If a neocon is the last remnant of that 80s environment, that entire concept has been dead for decades. Munchin is a +1 on the charts telling you republicans are in shambles, but he isn’t really a +1. While beyond that... the 80s version of appealing to the other side is long dead. There is nothing else to Munchin, but a D on a political map... a celebration of winning congress, that ends in perception of incompetence.
Edit: but...... remember that if he was a republican, there would have been no relief bill. There would not have been enough votes for reconciliation.