I would have no quarrel with the above. If someone DISAGREES it’s one thing. But people go further and tell me I’m WRONG, dead wrong, tasteless, lacking in judgment (we are now getting into the area of argumentums ad hominem (attacking the person instead of the argument).
In reality, such argumenta ad hominem are designed to show that, therefore, the nature of the thing in question is so evident that its evident traits are also recognized by the opponent, at least when some clear instances of the disputed datum are brought up; and that therefore the recognition of the true nature of the thing in question by the opponent himself leads to an inconsistency with the false elements in his position.