The principled thing to do about software you consider spyware is to not use it. Not paying for a paid product you use daily and continuously derive value from is hard to justify in my view.
I did pay for a version of Windows that does not contain spyware, so I am consistent with my principles.
Speaking of principles, which principle is responsible for taking a working, perfectly stable OS and releasing "updates" for it that introduce spyware?
I just want to make sure we're holding companies accountable to the same degree we're holding individuals.