Well in my belief, ads are unethical. These two views don't reconcile. And since I'm in control of my computer, I get to decide if the ads play or not.
Because if "ads are unethical" under your definition of "unethical", then I think it's totally fine for people to do "unethical" things.
Because if "ads are unethical" under your definition of "unethical", then I think it's totally fine for people to do "unethical" things.