Allergy theory... (share your thoughts)?

I have a theory about peanut allergies and lactose intolerance I would like to share...

I'm from a country where peanut butter is not a common item in a grocery store and also milk with cereal is not a very common type of breakfast.
Therefore, I believe that a repetative consumption of peanut butter and milk causes allergies.
At least these two allergies seem to me to be a bigger issue in North America than in Europe.

However, I wonder why that would be happening...
People have been drinking alcohol for centuries I haven't heard of people having 'alcohol allergy'...

Any thoughts?

I am an allergy sufferer currently doing research on the causes/treatment of allergies.

Here is my take

1.)the use of anti-biotics has exploded in recent years altering the bodies bowel flora which leads to a leaky-gut
type condition and predisposes the person to be more prone to allergies.
2.) repetitive eating is more common,repetitive eating exposes your immune system to one type of food over and over again and is a leading cause of allergies.
3.)environmental toxins,such as pesticides,some people are allergic to the pesticides used to grow the peanuts rather then the peanuts themselves,also the use of chemicals decreases the immune system.
4.)lack of breast feeding and bottle fed babies get twice the amount of food allergies,and also babies esposed to certain foods such as peanuts way to early causes allergies later in life.
5.)Certain foods do not agree with people biolgically or genetically for example most Chinese people are lactose intolerant because milk cows were not a raised mostly in China and milk was not an every day food.

I read a study that confirmed your theory. I can't find it now, but it did confirm that Americans are having more food allergies due to what we are eating.