Your ignorance doesn’t make any of that true.
My mother’s best friend in school died of anaphylaxis, at 14, in the 1950s. Coeliac disease – first described by Areteaus of Cappadocia 2,000 years ago – was linked to gluten during WWII. One of the Pharaohs died of an allergic reaction to a bee-sting. A physician, John Bostock, characterised hayfever in 1828.
Incuriousness puzzles me. When I realise there’s something I don’t understand, I find out about it. Why do you, instead, post insincere rants disguised as questions on Quora?