Sure, from a vegan perspective you can stop the entire meat and dairy industry completely based on the fact that it's not strictly necessary for our survival, but a lot of things aren't strictly necessary for our survival. You can also argue that humans have an ethical responsibility to be "more" and that because of this we shouldn't consume anything that causes suffering in living beings. Both of these arguments come out of personal ethics though.
In ethical terms, most people simply do not feel that the suffering of animals is equal to that of humans. One may not agree with this, but it's why people eat meat in the first place, or accept animal testing for medicine. So, as long as "specism" is the reigning morality that people subscribe to, it's unlikely we'll see a vegan wave, unless perhaps there's a climate component driving it as well.
In ethical terms, most people simply do not feel that the suffering of animals is equal to that of humans. One may not agree with this, but it's why people eat meat in the first place, or accept animal testing for medicine. So, as long as "specism" is the reigning morality that people subscribe to, it's unlikely we'll see a vegan wave, unless perhaps there's a climate component driving it as well.