The biggest cost of an electric car is the battery; and the cost of batteries is dropping very fast. Everything else is significantly cheaper in an electric vehicle except for the cost of the battery.
(Tesla used to say there's a "Moore's Law" of battery capacity, which is that every 7 years the capacity doubles for the same cost.)
Everyone (in the auto industry) knows this, it's just a matter of deciding how to plan for this. Either you can make a lot of hybrids for a decade; or you can sell EVs side-by-side with conventional cars.