It is not unusual for people to be allergic to pork, ham, bacon & other similar products
People need to get hookworms, then. (A recent study showed that at least half of people who believed they had food allergies, did not. Hookworms are known to alleviate (even completely get rid of) allergies, and although icky, aren't dangerous if one monitors ones blood and hemoglobin levels regularly.)
The race to the bottom, to the lowest common denominator, will transform humans into eusocial hive-beings. The line must be drawn somewhere. I draw it here.
Sorry, but your "recent study" sounds like nonsense.
Sure, and you sound like an idiot stuck in his beliefs, but that does not make it so.
Wherever hookworms are endemic, severe food allergies are almost nonexistent.
Look it up. They do not affect lactose intolerance or pre-existing asthma, but they do statistically almost eliminate food allergies – including celiac's disease and Crohn's disease, and the emergence of asthma.
If we consider human evolution, this all makes sense. Humans have evolved to be able to handle a parasitic load, especially hookworms (since even today, almost 500 million people are infected with them). These parasites suppress the immune system in specific ways. When completely absent, immune system response is way too strong, leading to allergies, Crohn's disease, and so on.
Non-food allergies, like being allergic to animal dandruff, can be effectively treated with intolerance therapy: very controlled exposeure to the irritant to reduce the immune system response.
(Because it is more commercially viable to sell people antihistamines than actually examine the almost endemic parasitic load to see their effects on the human immune system and produce proper modulants, thus far drug companies have only investigated how to eradicate helminths, instead of their positive effects. All helminth (hookworm) therapy studies have been done by universities. David Pritchard at University of Nottingham, UK, is probably the leading expert on the matter right now.)
(I am not saying I hope lots of people get infected with hookworms; I am saying their effect on human immune systems should be duplicated by safe supplements. In the mean time, anyone with really severe food allergies, really need to try intolerance therapy. If they cannot, then helminth therapy is a possibility.)
Banning
ham because some people are allergic to it is sheer idiocy. (Nuts, and all powdery substances I can understand; those are non-contact effects, and would interfere with intolerance therapy and so on. But not fish, eggs, meat, etc. If you're that sick, you need to isolate.)
Like Mark Twain said, "Censorship is telling a man he can't have a steak just because a baby can't chew it."
Instead of censoring others, we should control ourselves.