Chris, then sue them yourself. After all, this is America. If you believe you are being 'wronged' then go for it! Remember the lady that spilt McDonalds coffee on her lap in the drive-thru and then sued? Well she believed she was wronged and won $2 mil.
So, all I'm saying is people with a whole lot more knowledge about oil (composition, fabrication and make-up) than us made the decision to allow Group III's to be called "synthetic" and we must abide by this decision until it is decided otherwise. If you believe otherwise, then go for it. Just make sure you have more money than Exxon-Mobil because apparently, they coulnd't prove they were wronged...and they're case would set precidence for the aformentioned reasons. Until then it stands that Group III, PAO and Ester base oils are "synthetic".