That's a word that's misused (abused?) as often as I hear people like Nina refer to "the base" ... obviously having NO CLUE what (or who) the actual BASE of the Democratic party actually means.
The "base" doesn't mean (collectively) those who hold the furthest fringe extreme views. It's those who are LOYAL to the party, those who SUPPORT the party, those who VOLUNTEER for the party, those who DONATE to the party, those who GOTV for the party's nominees and incumbents, and those who ALWAYS VOTE for the party's candidates.
The base doesn't support Jill Fucking Stein. The base doesn't vote for Stein (over Hillary). The base doesn't compare Joe Biden to a "bowl of shit". The base doesn't refuse to vote for Biden (over Trump). The base doesn't withhold their vote because of petty squabbles or disappointment that someone wasn't nominated.
I'm not going to let people like Nina Turner hijack a word that is specific to loyal Democrats.