With current technology we easily could. And how would it hurt the poorer population more? Because they ruined all they land they could have farmed on because they practice ancient agricultural methods and ruin all their land? Well, hmm. Just as their agriculture has failed, so will their meat production methods.
People want meat but they don't know what is put into getting it. If everyone had to get their own meat, I guarantee you 99% of the western world would be vegans. You have no idea how ignorant you sound, you have the ideology of "Don't tell me or it will ruin my dinner!" and it really disgusts me.
Earthlings
If you can't make it through this documetary, gtfo animal products.