In that case we need to ban yoga and jail anybody who practises or teaches it.
The war on drugs has probably artificially created about as many criminals as it can and if we wish to keep investing in police/lawyers/jails then we need more creative ways to do so.
Bit to harsh, even if they are weirdos.
Just ban all those stupid roll up mats they have to have and carry round.
And maybe wearing those silly tights things that always seem to be too short for them and stop halfway down their calves.