@layman,
I never said it was. The problem is, you are only looking at one side of the same coin.
You can disrespect a person in thought, but not in action.
You can disrespect a person in thought, and in action.
Both are disrespect, so one any one person says, in blanket format 'respect must be earned' - then both are acceptable outcomes for the treatment of strangers.
You can always retract or modify your stated beliefs to 'strangers must be treated politely, until they show otherwise'
Or you can argue where does respect end and disrespect start, which may be like arguing where does heat end and cold begin (from the perspective of a human, rather than scientific point of view)