Before Super Tuesday in 2019, Bernie was the forerunner despite the DNC’s best efforts.
So every conservative democrat dropped out and endorsed Biden while the candidate who shared many of Bernie’s policies split the progressive vote (ensuring none of the policies the former Reagan campaigner was running on would actually be implemented).
We’re getting away from the main point.
non-ideological judgement is impossible because “impartially” applying for example, textualism is still ideological, because the choice to use textualism vs any other method is ideological.