Infighting would imply harris is a part of the left. She’s comfortably right wing by any measure. And there’s nothing wrong with that, it’s a valid political stance to take (not mine, but again, this is fine). Calling leftists disagreeing with harris leftist infighting is like calling the cold war leftist infighting.
A community of adherents of a political ideology which is fringe and marginal, and at the same time responsible for Trump’s victory. Very dangerous individuals.