With Nova, I set the grid to 13 rows and left off the labels.
Based on recommendations for a Nova replacement, I tried Lawnchair. But it only goes up to 10 rows, leaving space for labels even when labels are off.
Can anyone point me to a launcher that allows 13 rows?
There is a word anti-partyism, but it doesn't seem to be commonly used.
The literal answer to your literal question is called "believing that US politics should be non-partisan".
https://en.wikipedia.org/wiki/Non-partisan_democracy
The US started as de facto non-partisan democracy. There is a de jure option.
https://en.wikipedia.org/wiki/Direct_democracy
Direct democracy would probably give less power to political parties, but there still could be voting blocs. An example:
https://en.wikipedia.org/wiki/Orthodox_Jewish_bloc_voting