Americans are allowed to take the law into their own hands meaning each sentence can vary upon jury, judge or how good your lawyer is which allows room for supremacy, racism, discrimination, etc. Here in the UK we're upheld by the law with our judges, jury and lawyers, no supremacy, we decide sentences based on similar accusations not on a case by case basis, not even our Supreme Court can up hold the law, it's subject to and must comply with the law. It's Something like that