They might not drink tea much for having dumped all their kettles into the Boston Harbor back in 1773 or something.
What's funny is the people who were mad about it were tea importers, not tea drinkers. British policy on tea in the US [EDIT, er, the American colonies, that is] lowered prices, a lot, which ruined the profit margins of importers/smugglers.
We drink tons and tons of iced tea, but that's about as easy to make in a large pot on the stove as it is to make with a kettle, and most folks already have a large pot. Plus you can buy large containers of it already made at the grocery store.