Have you ever noticed that the wisest of persons on a particular matter will rarely argue with another when contested?
Have you ever noticed that some of the most underinformed are those that strive to argue with another the most, especially the expert?
If one or the other is not open to learn, the point of argument is mute.
Remain open to continually learn, to seek to be better informed. Quickly recognize and dismiss those that are not and choose not to engage.
“You are not entitled to your opinion. You are entitled to your informed opinion. No one is entitled to be ignorant.” — Harlan Ellison —