The problem is now there's millions of them out there already. You can ban them here, or perhaps across Europe, but I doubt China will stop posting them out to anyone with the money...
And what about DIY builds?
Do we ban the sale of brushless motors? Speed controllers? Microprocessors? Nuts and bolts??
The CAA have already prosecuted offenders - the big problem is catching 'em...
Sorry about the smiley - I keep having this conversation...
I work in the 'industry' (mil spec) as well as flying as a hobby, so I have an interest in both camps.
The CAA's reasoning is that a big prosecution with a big prison term might wake some of the loons up...