Advocate Joey Carbstrong spoke out about the piece on YouTube
Joey Carbstrong described the verbal sparring as a 'character assassination'
He said activists 'need to be careful'
The high profile campaigner has watched the powerful documentary five times
The farmer said humans are natural 'hunters and gatherers'
The farmers claim they have received death threats from vegans
The poll was prompted by a vegan activist's appearance on mainstream TV
A look at media reactions as veganism gets more column inches
The discussion had an impact on the radio show host
They bear witness to the last minutes of the animals' lives