There is a lot of things going on that hide the true costs of energy from all sources:
- Subsidies to fossil fuel producers; lack of carbon tax hides the externalities involves with fossil fuel construction
- Renewables are often subsidized directly (e.g. grants) or indirectly (spending on infrastructure to support renewables on grid)
- Nuclear often has large up-front capital costs that require government assistance
All in all, its almost impossible to find the 'true' cost of any sort of energy.
I pretty much concur with your comments. But I am leaning to being convinced that the hidden costs of fossil fuel production clean up will be way more than convering to renewables as much as we can.