While nuclear is finite, we have enough for tens of thousands of years if we use...

While nuclear is finite, we have enough for tens of thousands of years if we use breeder reactors: http://www.scientificamerican.com/article/how-long-will-glob...

And it is also true that the extraction and refining is completely dependent on fossil fuels, but so are renewables.

Except that breeder reactors are one of those things that you may not want to hand out willy nilly...