> Also, removing beef consumption would increase consumption of other foods so the emissions reduction wouldn't be as drastic.

Well, since you have a factor between 10x (cereals) and 100x (legumes) in the CO2 emissions between beef and vegetables, yeah it does drastically decrease emissions.

> Objectively, chicken and pork have much lower emissions than beef. Right. However, pork is mostly fed with cereals, inducing a high level of CO2eq/kg + land use + loss of diversity.