No it's not. Only a tiny fraction of cattle are solely pastured. Each beef cow, even if pastured for the first year (which is typical) requires literally tons

No it's not. Only a tiny fraction of cattle are solely pastured. Each beef cow, even if pastured for the first year (which is typical) requires literally tons of high-calorie corn and or soy feed to bring it up to slaughter weight. Guess where that feed is grown. Besides, the range land you're talking about isn't needed for crops anyway. We have more than enough arable land to grow crops for direct human consumption.