Is any party not riddled by doubts and infighting?

Someone who thinks it looks bull-headed?

The leadership contest uses ranked preference voting. There’s no vote-splitting.

Neither covariant nor contravariant.

supertype[] is not a supertype of subtype[] if supertype and subtype alone are in that relationship, because the mutability of arrays means that the Liskov substitution principle doesn’t hold.

(These are all something you’ll probably find good explanations of on Wikipedia.)