I truly believe that one day humans look back on meat consumption with disgust and horror. As a symbol of our barbaric and animalistic past.

This is of course assuming that technology and our global economy develops to a point where eating meat is no longer necessary for survival for almost all humans. Because I do recognize that many poorer parts of the world still rely on meat and animal products in order to get their required amount of protein, calcium, etc.

But in most of the developed world I cannot see any justifiable excuse to eating meat. Most people in these parts of the world can sustain a healthy life using plant products and supplements. Many do.

No culture or personal enjoyment justifies the killing and torture of other living beings. And to say that eating meat is natural and part of our evolution is obviously an appeal to nature fallacy. There are many ways we can and do work to prevent pain and suffering caused by nature.

Also it has yet to be truly proven that insects and fish don't feel pain and suffering. I guess if it can be definitively proven, one could make a case for eating them.