Our election system mathematically guarantees there will be only two useful choices. Any attempt to swap one of those out requires years of transition in which you are actively helping the side who agrees with you even less to win and move you further away from what you want.
Until we have more ubiquitous ranked-choice-esque systems, that will not change.
Yes, but this has to be done in a more local level. Trying to force a new party into existence starting at the federal level is not planning for success
Jill Stein opposed the genocide in Gaza which was supported by the Democrats and Republicans. As a result, she had support in many Arab-American communities. There were a lot of news stories about this, particularly towards the end of the election.