And while that's not an unreasonable rebuttal, my first argument (in agreement with yours) is that Google does not sell their users' information, and neither does Apple.

Being up in arms about the lack of privacy from Google is fair, and something I agree with. But Apple doesn't offer dramatically more privacy from Apple that I'm aware of. Both allow, but discourage, free accounts, and run ad networks (that they don't sell user information on)

I'm not even arguing there's no difference, just that there's less than everyone likes to pretend