The USA has regional dialects. You have your Bostonian American dialect, your Texan American dialect, your Georgian American dialect, etc. They all involve speaking somewhat more the nose than Europeans, but after that they veer off into various other directions. They all are derivatives of English, but they are not English anymore. Therefore I say you Americans can thank the French for being at Yorktown, blockading Cornwallis, and thereby ensuring that you aren't all speaking English now.