Prohibition seldomly succeeds. But yes, I would not mind it dropping to zero if alternatives are 100% doable (glycoproteins contained in beans needs LOTS of processing before they stop affecting gastrointestinal health (many indigenous tribes have ways to threat pulses that work but we tend to ignore the problem completely from industrial perspective) and things like soy has oestrogenic properties which can be bad news in the long run). Quorn is a "new" protein which has better profile than soy and relatively little allergenic potential.