My Islam/Asian comment was directed at the fact that it was said that we should not enforce things onto humans, however the poster which trying to force things on specific minority groups.
I consider everyone human beings
On the economists bent thingo; I believe that is a cultural/political skew. With economics you need to look short-median term because conditions change so dramatically over time (it's not about assessing universal truths/laws).
Also you have things like retirement, the sick, disabled, ect. that need to be factored in to be provided for as society gears towards a smaller population (the elderly being the biggest problem, aka baby boomers).
But agri-science/agri-economists, along with climatologists, nutritienists, and some socio-economists would be the best team to analysis the situation. I know you could list a lot more, but the more you include the more authortarian that new society will be. But in the end to disclude economists is a bad thing as lon as you can include the right ones.