Want a sure-fire way to start a transcontinental fight on the internet? Specify a distinct preference for “Soda” or “Pop.” Then sit back and watch the fireworks. Another good one is “Sprinkles” vs. “Jimmies” … oh dear God, hold onto your hat!
Why can’t you just grow up, and accept that no, you aren’t “right” and they aren’t “wrong” – it’s a regional naming convention, so just bite your tongue, and sit down.