When it comes to climate (the topic here), banning beef is being used by climate inactivists as a cultural wedge issue to stop climate action. Michael Mann, a vegan, has strong opinions on not harping about beef out if its true importance in the climate policy fight:
https://theclimatepod.libsyn.com/dr-michael-mann-on-the-new-...
As for the non-climate concerns for beef, sure, but that's not the topic here.
I still think beef is a wasteful, unethical luxury, and every bite of beef comes via great cost to the millions of species going extinct and the future devastation of coastal and island peoples.
In my view, we need to place taxes on behaviors that are bad for society. Barring that impossibility, we need to develop meat alternatives, change hearts and diets, and also reform the beef industry towards sustainability. I think ideally, we'd always have cows, but in far, far lesser numbers.