Let me repeat it again and not use too many words this time. The topic is: The meat & dairy industry causes environmental destruction and it's unnecessarily c

Let me repeat it again and not use too many words this time. The topic is: The meat & dairy industry causes environmental destruction and it's unnecessarily cruel towards other animals. We've reached a point in human and technological evolution that we don't need to exploit & kill animals for our own survival anymore. The official definition of veganism is: "Veganism is a philosophy and way of living which seeks to exclude—as far as is possible and practicable—all forms of exploitation of, and cruelty to, animals for food, clothing or any other purpose; and by extension, promotes the development and use of animal-free alternatives for the benefit of animals, humans and the environment. In dietary terms it denotes the practice of dispensing with all products derived wholly or partly from animals." What's wrong with trying to promote that way of thinking? Please tell me what is wrong about avoiding cruelty, killing and environmental destruction if all you have to do is not support the meat & dairy industry and not eating animals?