The Fundamental Problem at the Moment
A faction of the House GOP caucus is acting like they have comfortable majority control of the entire US government rather than being a faction of the party that control only one piece of the machine.
If they had the House, a 60+ seat majority in the Senate, and the White House, then they could get whatever they wanted in regards to a deal. Of course, were that the case, there would not have to be a drawn out negotiation (i.e., we would not be taking about a “deal” but rather just about legislation).
The main problem at the moment is that said faction appears not to understand that, given its position in the machine that is our government, it cannot have everything it wants. As such, the reasonable thing to do is get as much as they can without wrecking the economy on their way to getting nothing.