I don't really think the issue with with grazing cattle on land that's suitable for it. I think the issue is that we're raising cattle in places that _arent_ suitable for it.
Take for instance the factory farms which have to constantly ship food in to feed the cattle. Another example is deforestation to create fields for cattle to graze.
I think the OP is right, we need to convince more people that beef is not a sustainable food with the rate at which we consume it today.
I just want to throw my two cents in as a (very) young woman in college that aspires to become a Software Engineer.
I'm very glad that groups like PyLadies and Women Who Code exist. Unfortunately I'm pretty terrified of meeting men that are significantly more experienced than myself in the industry when it comes to software. I'm terrified of coming off as clueless or air headed. On top of that, the men I have met in the industry are extremely intimidating. I've already had multiple experiences at University where a male peer has looked down at me due to my gender.
This is probably just a simple self confidence issue since I'm young however my point is groups that are women centric are a lot easier to relate to for someone like myself. I love the prospects of meeting other women that can give emotional and professional advice while sharing their work experiences with me. It's much easier to relate to and I'm sure networking with other women makes it easier to transition into the industry from school. Just my two cents.
Take for instance the factory farms which have to constantly ship food in to feed the cattle. Another example is deforestation to create fields for cattle to graze.
I think the OP is right, we need to convince more people that beef is not a sustainable food with the rate at which we consume it today.