Citing "primary" energy is a great way to be off by several factors on any estimate.

Electrification results in 2x-5x less energy use for nearly every large energy application. Take, for example, heat humps. Fossil fuels are only something like 95% efficient, whereas heat pumps product 200%-500% efficient. Same goes for EVs over fuel engines, etc.

Old sources of energy get replaced all the time. Not sure why you think that's not the case...