You don't need feed crops for meat. Historically people used marginal land where crops don't grow to graze animals. (And there is a lot of marginal land, even with modern fertilizers.)
Anything else makes no economic sense.
Anything else makes no economic sense.
If you exclude environmental impact, basic human rights, animal welfare, and social stability, a lot of really short-sighted and destructive setups suddenly start to make “economic sense”.
https://ourworldindata.org/global-land-for-agriculture
It does not make sense long-term, but the long-term bill will be paid by someone else, so people today don't care.
And feed crops are often from questionable origins.