Avocados

Some facts about Avocados:

They are also known as Alligator Pears.
They are mildly toxic.
They make me vomit with just a taste of them.
They are not native to Japan.
People insist on putting them in sushi.
I cannot eat sushi because the avocado would ruin my day.

Why do Americans insist on putting avocado into all their sushi. No traditional Japanese sushi recipe incorporates avocado, yet it's nearly impossible to find sushi in this part of America WITHOUT it.

Thanks, America, for ruining an otherwise deliciously awesome foodstuff.