Why the paranoia?

Why is the state so fearful of survivalists- they even recommend survivalist measures to the public! The Environment Agency recommends that people in flood areas store 72 hours worth of food and water. This is sound survivalism and the British Red Cross recommend something similar.
Survivalists are generally healthy, outdoor types. They love nature (when not eating it) and should be a force for good. Nevertheless the government and the liberal media continue to attack it. Why? Could the reason me political?
Militia and survivalist activity is alleged to have increased by about 250% under the Obama presidency. Survivalism is a right wing force in the US and could become the same in the UK. The government would rather people remained unprepared and ignorant than come in contact with these ideas. Shame on them!