Ocasio-Cortez' arguments about a new energy grid can't be dismissed out of hand. She has some good ideas, and she has some very not good ideas. The required study from experts to crunch numbers, and carve out a realistic plan has yet to be done. Jimmy Carter had a plan that was very similar to the Pickens Plan to get this country on a independent, clean footing.
You love electric cars? Well it takes a lot of energy in a much expanded electrical infrastructure to run them. You also need a great deal of manufacturing to mine and manufacture the critical materials, and then build the fleet of vehicles. Anyone ever seen the electric bill at a car plant?
Natural gas, Petro & coal must be recognized not as the devil incarnate, but rather the critical bridge to building the massive energy infrastructure required--that must not be squandered (re; what we're now doing). The grownups need to urge people to stay calm, reject extremist dogma--and instead search for a realistic solutions.
Imagine how you would build a huge range of improved nuke's, windfarms, massive solar collectors, and new generation of transmission lines without a healthy supply of energy to move the machines, and fuel the manufacturing that will make it a reality.
We can build a new generation of Nukes that are safe, munch Thorium and waste stockpiles, are failure safe in the context of meltdown, solar, wind, geothermal, and tidal power (there's enough tidal energy in the Bay of Fundy to run a significant part the country) can certainly put a huge dent in our crisis of fossil fuel consumption.