I tend to agree with Arthur on this, we will always have farms not just for meat but all the by products that we use from animals, there is a line which we will meet in animal welfare and that is humane forms of culling.
This is nowhere near what PETA/Vegans want but it is the best they will ever achieve.
That said I saw a very interesting video the other day that shows they are now making a material that for all purposes looks and feels just like leather, out of coconuts!
Ken