When Marjorie Taylor Greene hammers Johnson on the basis of his being "the Republican leader" she shows her own ignorance, but more importantly, she expresses a critical misunderstanding that's pretty rife throughout the US population.
No, Johnson is not the Republican leader. As Speaker he's the voice of the entire House, including Democrats, in contrast to Steve Scalise, who as Majority Leader is the actual Republican leader.
The reason this isn't mere technicality is that Democrats absolutely have a say in the Speaker and can support or oppose the ouster of a speaker and choice of a new one.
#MTG is an idiot, though the public can be excused for not knowing this detail. Unfortunately, politicians take advantage of that, contributing to congressional dysfunction.
@volkris Nice bit of useful nuance here.