In less than a generation we will have to totally change the way we power our society.
Right now one of our main inputs, oil is in seriously short supply, and gas looks to be getting to a similarly precarious situation very soon, and is rapidly increasing in price right now on the open market.
Coal is likely to be in increasingly short supply in many regions and more expensive, to say nothing of concerns about global warming.
Some don't seem to find these challenges daunting enough, and wish to discard the one fully proven low-carbon way of supplying most of the electricity for a society.
This cannot be sensible.
Any contribution renewables can make will be very welcome, and conservation is even more important, but now is not the time to discard any options, and nuclear energy should be ramped as fast as humanly possible.

Well said. I should clarify that I'm not just in favor of subsidies/breaks for nuclear power generation. I'm also supportive of strong government measures to encourage conservation, alternative sources (wind/tidal/solar/geothermal), and transportation infrastructure such as electric rail. As you say, it needs to be done *now*, which fossil fuel inputs are still available.