Well said. If the Senate Republicans, who are in a majority and whose collegues control the House and the Presidency, cannot confirm a UN ambassador or judicial appointments. THEY NEVER WILL!
Some of them are just downright charlatains and turncoats who are abetting their political oppostion for niceties, personal advancemnt (in the form of promises from the other side of the aisle), and ideological closeness to the other side. In so doing, they are also abetting our enemies IMHO.
If continued (and if it exists in a time when abject enemies want nothing more than to kill us all...then I am afraid it is not going to be abated anytime soon) it will, as you say, lead to an inevitable train wreck...and a very bad one.
As the classic saying goes, "Nothing good will come of this." The lessons of history and human nature are all too clear on that point. It is the twilight of the Republic.