The will of the people, the people who vote these leaders into office are ignored over and over. There is no choice to vote them out. We need 5-6 parties. All elected knowing that when they turn their backs on the people who supported them on their promises, they are shown the door.
Right now the two party system could care less about the people of this Country.
I guess you favor a parliamentary-type system in which coalition governments usually need to be formed. If you are truly conservative (I have doubts), you would not like the coalitions that get formed in the US because they will vastly over-represent the Leftist fringe.
I really cannot see a valid argument against the notion of “big tent” Republicans. We do not need to agree on everything, except that the Democrats are the party of socialism and anti-Americanism. That said, priority #1 is keeping them out of power.
We got 8 years of Clinton when there was a semi-viable third party running for POTUS. We will get a lot worse with a multiple party system.