Why do British call French fries chips?

British chips are bigger

French Fries are thin and crisper

I thought Americans changed the term to Freedom Fries,when you fell out with France

over some war...!

It makes more sense than call fries French when they are not

The British people call chips chips and french fries are called french fries, Chips are are quite large and french fries are very thin.

Because they have all ready used the word "crisps" for chips. They can't have two different potato products with the same name so they call French fries "chips".

because they are chips of the potatoes.   Look, let's be honest now.. we Americans have screwed up the English language.   

Our hodgepodge of cultures have distorted proper English. But that's why what we speak is called American English... and what they speak is called English.

Because that’s just what they call it there. Over time, different countries and nations developed different terms/words for different items. For example, Americans generally say “trash can”, whereas in Australia and England we say “rubbish bin”.

Why do Americans call chips “French fries”?

Because that's the normal thing to call them. A friendly reminder that the English language originated from... I don't know maybe, England??