The term is a derogatory one used to defame animal agriculture.
You (obviously) know nothing of agriculture and so your impressions of such are based on the poorly managed few that make the news.
Consider this: What if the public was basing their impressions of the horse industry on the actions of the Big Lick people? What if they were using said impressions to crusade against all use of horses? Would that be at all logical?
No, no it wouldn't.