Confused About Energy Policy?

Could anyone explain why it is useful for UK PLC to have soaring energy prices (50% apparently) based on costly nuclear and “renewable” energy policy, such that imports from low cost carbon dependant fuel economies like China have an even greater competitive edge than they do already? Is it not inevitable that in a credit crunch world our relative demand for low cost goods and their manufacture in these countries will increase? This will in turn mean that our demand for their products will produce the CO₂ where the goods are made regardless of UK energy policy and we all know that C0₂ does not need to show a passport at the border.

On a global scale isn’t this policy at best a carbon neutral act with deleterious implications for UK competitiveness on a global stage?   View points are very welcome, because we are confused.