Well
How about drafting a short petition (looks like a single paragraph is the going rate).
Once it looks about right set up a petition on the Downing St E-Petitions site
http://petitions.pm.gov.uk/
Then we all sign it and get everybody we know to do likewise.
Then we all Lobby MP's with snail mail.
Generally raise the profile of the issue and create merry hell until somebody pays attention.
I suspect that the various representative bodies are doing everything they can within their consultative frameworks (straight jackets) which will have been defined by the teams of beaurcrats that have been tasked with pushing the measures through.
Some grass roots activity should if nothing else support the GA lobbying community with some definite indications that their communities are ready to take a more active part than just paying their subscriptions and awaiting further developments.
BB
Probably about to be barbequeued in PP fashion.