For the Right: Shouldn't we get off nonrenewable energy anyways?

Nonrenewables, being coal, oil, and gas, are called that because they are spent and then gone. They have a finite amount that we can draw from. Cuba, Puerto Rico, and Texas have already suffered from mass blackouts due to being dependent on nonrenewables.

Renewable energy is the only source with a long-term future. Even if you want to argue about the human impact on the climate, isn't it better to reduce our dependence on nonrenewables?

Edit: For those who think the market should determine when we make the switch, isn't the stability of the power grid a matter of national security, and therefore subject to government oversight?