The meat industry as a whole is unlikely to win big from a switch to vegetarian or vegan lifestyles. In fact, such a switch would likely have negative consequences for meat producers.

The reasons for this are twofold. Firstly, a shift to plant-based diets would reduce demand for meat and animal products, leading to decreased sales and revenue for meat companies. Secondly, the switch to plant-based proteins could lead to changes in the way that land is used, with an increased focus on growing plants for food rather than raising livestock. This could reduce the need for grazing land, resulting in a decrease in the demand for meat.

It's important to note that the meat industry is a complex system involving a wide range of stakeholders, from farmers and ranchers to meat processors, retailers, and restaurants. The way that any potential switch to plant-based diets would affect these different groups is likely to vary.

Additionally, the rise of plant-based meat substitutes, such as alternative burgers, sausages, and chicken nuggets, could also potentially erode market share from the traditional meat industry. These products offer a convenient and accessible option for consumers looking to reduce their meat consumption without giving up the taste and texture of meat.

In summary, while there may be some specific segments of the meat industry that could potentially benefit from a shift towards vegetarian or vegan diets, it is generally not accurate to state that the meat industry as a whole would win big from such a change.