You’ll change more minds by getting curious about theirs than by defending yours.

Argument makes people defend, and a defended position gets stronger rather than weaker, which is why most debates end with everyone more certain than they started. Questions do the opposite, because explaining your reasoning out loud is when you notice its weak points yourself. You cannot do that work for somebody else. You can only create the conditions where they do it.

In your next disagreement, ask three real questions before you state anything. Ask what would change their mind. You may end up moving instead, which is not a loss, and either way the conversation goes somewhere.