I have. I do my damndest to avoid palm oil & friends.
There's definitely local meat that's fine for the planet. As far as I'm aware, the trouble is the bulk of the market, the high-volume bottom-dollar part of the market. The industrial beef grown on soy & corn. It's the McDonalds patty, not the quarter buck in the freezer at grandma's.
As for your sheep field, pasture is not really the most carbon-rich soil. But, maybe it's not much worse than pine forest. The best are wetlands, bogs, & frequent fire areas.
Have you read about the deforestation from palm oil, canola oil, and coconuts that feed vegans? It's not clear to me eating meat in the USA, especially local meat where I am in New England, is comparatively worse.
(Ironically I'm "deforesting" a former field of small pines to restore it to sheep grazing this year. But I do not think this ecologically destructive: ultimately it would be building soil.)