well, i understand you here, but see that this might not be true either; you are surely making an impact when you illuminate truth, imo we just expect an immediate response, rather than seeing how truth actually changes a person, iow over time, while laying in bed that night, or whatever lol. Of course in the moment when you are debating, an argument will be presented; but if what you are saying is truth it will change the convo nonetheless i think.
Would it be better to have your truth unchallenged? Actually no, right.
When a change of mind does occur, it usually happens "in an instant," but the path to get there is different for everyone i guess.
plus, being a forum, i or someone like me is liable to challenge your truth, even if i agree with it, just to illuminate a different aspect or whatever, pls pardon the person changes in there lol