It’s a clip from the phenomenal documentary Samsara, directed by Ron Fricke. The video is not about whether eating meat is right or wrong, that’s not the issue, it’s about the way it’s produced. Treating animals like machines with no concern for their welfare, no space for them to move, hoovering them up like they can’t actually feel pain, fear or discomfort is reprehensible. It’s torture. I fail to see how any intelligent human being cannot emphasis or feel horror when they see a living thing being treated in the same way as an inanimate object.