The way to combat this is to not buy products that have this in the first place.
edit: a lot of comments are saying that the ads were added later, after purchase. This doesn't change my opinion at all, because people still bought products that have the capability for ads to be added retroactively. That is on you.
If you don't like the option of it happening, and as this example illustrates it can clearly happen, then do not buy products that have the capability of having ads added retroactively to the product.