Lots more than that will be lost. All the service stations, refineries engine, brake, muffler etc etc repair and fabrication jobs will go away over 20 years.
You say why brakes? Well careful electric drivers rely on regenerative braking for as much as 80% of their stopping. As people learn to watch the flow of traffic and anticipate traffic lights they get quite good at it. Autonomous cars are expected to do very well, especially those that make close packed convoys to save on windage (they all talk together to reduce any time delay to near zero).
So lots of jobs lost to e-cars, far more than that 75,000 mentioned.
...Whereas it takes some 4,000 workers to assemble a million gasoline-powered engines per year, just 1,840 are needed to build the same number of electric motors, the study claims. And a battery factory requires only a fifth of the workforce when compared with an engine plant...