Flag up the issue at Minister level in the UK, as well as in the top levels of EASA, that unless these toys/weapons are banned from sale now, with criminal penalties for infringement, it's simply a matter of time until a serious crash/terrorist crime will take place, and that the danger exists now, not next year. It should also be a crime to own and/or operate one in the UK at least, preferably the civilised world..
The measured bureaucratic processes of procrastination, consultation, drafting etc etc have to be short-circuited, no matter how many people's noses are put out of joint.
It is not impossible to do this; imagine how quickly it will happen if there is an accident caused by an idiot with one of these "toys", especially one over a large city like London.
And I'll bet £1,000 on the existence of a group of extremists, probably in the UK, with at least one of these things and engaged now in working out the best way to use it against a high-profile target such as a commercial airliner on the approach to LCY or LHR 28L/R.
I'm well aware of the complacent view that they are only another kind of model aircraft, which have been flying for years with no problem. But they are not, there is a world of difference.