“I am a man more sinned against than sinning.”
This statement implies that King Lear is not sinning as much, as compared his subjects and others sinning against him. I am writing from a classic perspective.
I think that the statement is true because as he is the King, he is above all, meaning he can do what he likes and say what he likes under Gods reign. This statement means Lear believes everyone is wronging him, he is not wronging everyone, this in some way is true, and a classical approach would 100% agree, he is above women and his daughters and they must fall under him. He is king and how he believes society should act and what they should say comes down to him, others plotting against him is a sin, while him plotting against others is not. From a modern perspective, this is absurd, however in these days plotting against the high power was treason, so I can see where he is coming from. He has the right to say this and to most people would make perfect sense.