Tell that to France, who have been sourcing the vast majority of their energy from nuclear for decades and, other than territories with the geography to support large amounts of hydro, are the only country to ALREADY have a low-carbon, stable energy supply.
So, instead of opting for a low-carbon solution which is already in place and proven to work, we want build renewables alone, depending the on decades-away storage technology needed to stabilize their intermittence. In the meantime, we either back renewables with nuclear, or we back them with fossil fuels. They are your options.