Hope this is not true. Moog Offset Upper control arm bushings.

Another way to say it is that caster does not wear tires directly but can cause wear indirectly as in your earlier post you say that toe was causing the wear.
I guess so.
If you drove from east coast to the west coast in a 100 mile an hour cross wind out of the south it would have the same effect. You could blame the tire wear on the toe being off because of the wind.