You can not argue with a liar and expect to win the argument, because you can't argue a lie, only the truth can, and you can't change the liar unless they want to change and they will continue to believe and espouse their lies as the truth, which you can't argue because you can't argue a lie.
A lie is what it is, a lie. It's nothing else and nothing can prove a lie exists except the person who believes it and espouses it. And we all now why you can't argue with a liar. A liar will deny the truth, distort the facts and excuse reality to believe their lies. It's all they know. They are deaf, dumb and blind to anything else, and why you can't argue with them.