It honestly sounds like you are just butt-hurt that Britain made a stupid decision with that treaty and are blaming it all on America. Those Americans used their nefarious influence and power and forced us poor brits to sign a bad treaty! Poor us!
I'd change my opinion if you had some evidence that we bent you guys over and forced you to spread your cheeks, but come on, unsubstantiated theories only convince those who want to believe it. And why the hell should America voluntarily reform the treaty and make it more difficult to extradite suspected criminals from Britain? That certainly doesnt sound like it is in America's best interests.
Blame your government for agreeing to an 'unfair' treaty. If you want it scrapped, blow the whole thing up and start over.