Well, I think the underlying assumptions here that 1) the public don't want to shift to a zero carbon economy and, 2) doing so is a risk to national security, are both false.
I think if you look around people are buying electric cars and getting solar panels fitted in droves because it is so economical. Frankly, I regret that I bought a petrol car last year and that I don't have much roof space, because I see friends selling energy back to the grid and running their cars for pennies. If this is 'net-stupid-zero', bring it on.
Then I know a few people who work in this sector and they are largely running local businesses installing solar panels etc. That is clearly good for the economy and employment more generally, but also it totally increases our energy security at a personal and national level.
And then I think even the most sceptical people look at the summer just gone, and the fact that it is 25 effing degrees today, in September, and think, maybe we don't need to be burning that oil.