This is America it does not work that way, political parties can change, evolve, even merge, but they represent the collective desires of many.
America gives you the tools to be free, but I want the collective thought of many to be at the forefront. We just went through four years of trump, and he is still a force in the republican party, and that sucks.
It does not permit the free exchange of others, no one person represents America, that is when you get a Putin, and no one wants that.
The founding fathers are called that, their collective reasoning contributed to all of the tools necessary to build a nation that keeps bringing more and more people into the political discussion.
Freedom is represented by more freedom, not less, it is messy, everyone's freedom is defined, it is not precise, like politics it encompasses more and more.