I wasn't seeming to suggest, I was suggesting.

Of course it should go hand in hand with education, etc.
But for me targets are not a once in a generation type of tool. They're more of intermediate point to achieve, and to stop, consider what has been achieved, can more be done, is it enough so far, etc. And of course targets and achieving them is not the be-all and end-all. They are tools for achieving something else, and it's important to always bear that in mind.
But as aJohn suggests, a proportion replicating that of the general population seems to be a sensible initial target.