To answer your question , absolutely. It's not a big secret. You are better than I ever gave credit if you ride down the road at a 2% angle friend. You don't, you ride like the rest of us lowly creatures, straight up and down without angle ( in the straights ). Like I said I wore out that side of my bike tires as a kid. You even have a member from down under stating he has the same wear on the opposite side of the tire. I was hoping someone that drives / rides in the other lane would reply.
Put the bottle down Robert, its bluring more than your vision!
If your theory was correct every motorcycle tire in the US would ware heavier on the left side. They don't! Mine tend to wear nice and smooth in the middle unless I'm spanking the twisties on a regular basis. Only then does the left side ware more rapidly and that is undoubtedly due to the riding more aggressively on left turns which I am very much aware of.
And to be honest, this is a mute subject. Like Religion, everybody has their opinion and none have ever been proven and never will. It does not make a hill of beans difference which side wears more or less. When the tire is worn out its worn out. Who gives a rats a$$ which side the cord shows up first.