A lot of the time, people don't want truth, they want to be entertained or to seem mighty. The trouble is I'm not talking about their taste in fiction. I'm talking about core life choices.
Truth isn't just what you want it to be, or what you can construe. Finding the truth and facing it down are often drastically harder than persuading someone.
Everyone thinks they know the truth. What's the difference? Some do. Why? Usually because they're less certain. They keep checking. They take every objection seriously. They want to know.
These people are less persuasive, but that's everyone else's fault. Their approach should be more persuasive, not less.