Land usage is a totally useless metric for the impact of beef production, because we can (and do) raise cattle on land that's basically useless for anything else.
Completely ignores the methane output issue which is a huge contributor to global warming. Also, killing billions of sentient beings simply because the taste is a bit off, but let's all just ignore that.
First off, there used to be over 60 million buffalo in North America, producing similar amounts of methane. We have only 50% more cows today.
Second, whatever cows don't eat is probably going to be metabolized by fungi, which also produce methane (although it's not well-quantified how much).
Third, the half-life of atmospheric methane is only on the order of 9 years (it's a fairly unstable molecule in an oxidizing environment), so its long-term effect is much smaller than CO2's, even though it's a more potent greenhouse gas.
> simply because the taste
It's about nutrition and health. "Taste" is a strawman.