Your use of insults does nothing to add to your credibility.
Asking for a citation is asking to be educated. Most people are not going to bother going to a meat plant (which may or may not be in their area and may or may not be open to the public). It really is up to the poster of the information to back up claims like that which cannot be verified without further research, and it is not unfair to ask for such evidence.
I am not the same user as jamesh; it is just a coincidence.