After you subtract the hundreds of cancellations due to Covid, there are 4,843 orders for Boeing 373 Max. So far 706 of those orders have been delivered on.
I know the alt right posters on JPP want this to be absolutely terrible or absolutely perfect, but reality is rarely that.
Boeing 737 Max's are comparatively fuel efficient, but of course they need fuel. Fuel prices have gone up, but fuel still exists in the world. If anything, there is currently an oversupply, still, of jet fuel.
Airlines are buying the Boeing 737 Max, because its greater fuel efficiency makes owning an older non-efficient plane not cost effective. There is a point that it is just cheaper to buy a new plane. Even if their plane is late, cancelling their orders means that they would have to go to the back of the line if they tried to order the plane again.