It probably pisses you guys off that the rest of the world hates you, but seeing as you only just found out that there actually IS a rest of the world (shock horror) and you barely know who they are, why does it matter, eh?
1. It's fucking JAG-YOU-ARE, not JAG-WAR. The brand is from fucking Britain. It's pronounced however the British pronounce it.
2. America has come pretty far, I think they sent a bloke to space in the 60s or something and have caused one hell of a lot of global warming. So you're right there.
3. Americans do have better oral hygiene, so you're right there too. You can be safe in that knowledge when you're driving around in your fucking stupid pickup truck with a unnecessarily big 7 litre V8 under the bonnet which uses more petrol to go 2 metres than the average British car uses to go 50 miles. The example has to include Bastardised English, so there it is.