At the Andaz, it is your choice to use them, though you may not like the choices you have. You could (1) not stay at the hotel, (2) stay without a car, or (3) park your car off property. If you want to bring your car, you must valet -- part of the package, and your choice to take the package or not.
Likewise, you can't expect go to a nice restaurant at the Andaz and tell them you'll get your own food from the kitchen to avoid paying the server 15%+. Doesn't matter if you have no need for the waiter, or if you're concerned the waiter might screw up your order or spit in your food.
Well said!
If you don't like their philosophy, don't stay there. I'm not sure why you are ranting about tipping valet drivers. This is pretty standard in A LOT of major hotels, whether it be U.S. or Europe. This is not new.