What that graphic conveniently leave out is the efficiency of the power plant generating the electricity and the efficiency of distributing that electricity to the charger. So cut that EV efficiency by about 50%-70%.
Curious as to why you’d only examine one side of that same argument, because it also leaves out the efficiency of drilling for crude oil, converting it to gasoline, applying additives like ethanol to basically dilute it and make it even less efficient, etc. That’s a horribly inefficient process as well, and one that uses that same power plant inefficiency to run the manufacturing processes at the refineries.
(ETA: saw that this was already addressed to some extent above. Sorry for the redundant commentary)
The only inefficiency argument that can be made in regards to EV’s regarding any environmental factors are that the same amount of battery raw materials used for one EV could be spread across 3 or 4 plug-in hybrids, or 6-7 conventional hybrids. In each progressive case those vehicles become cheaper, and the overall carbon footprint is greatly reduced more by spreading those materials through to more vehicles. To be clear, the single EV is still going to be the most efficient compared to those others. But that use of the limted precious metals forces you into building more ICE models to compensate.
Ultimately, it’s all about the most effective conversion of non-renewable resources into both reduced emissions and efficient power transfer at the wheels for the entire fleet of vehicles for each automaker. BEV’s are a big part of the answer and becoming a bigger part every day, but they aren’t the only answer.