Perhaps you're unaware of how quickly renewable energy is growing in the United States. Renewable energy in 2015 already accounted for 13% of energy generation in the US. In addition, renewable energy capacity is now growing faster than all non-renewable capacity combined. In 2016, 63% of all generation capacity gains were from renewable resources, while 32% came from natural gas and 5% from nuclear. It'll take awhile for it to reach the tipping point where renewable accounts for more overall generation than all other sources, but this is a snowball rolling downhill. It will only continue to build momentum. There's already more than enough crude to get us to the finish line.
I agree that 13% is not a small share. But then, to replace the fossil fuels, we need to manufacture electric cars at affordable prices. Right now, they are out of reach for the vast majority of the Americans. And the future supply of Lithium and Cobalt is not that assured.