False news is a fact. Hoaxes do exist. The disagreement is about what percentage of the news is fake news.
Anyone who claims some news is fake, is just expressing a mainstream point of view. The discussion between mainstream and alternative media is about the extend to which news is controlled and fake.
We are under the impression, that a) almost all mainstream news worldwide is controlled and b) about half the news should be considered fake news. It is even worse for alternative media. People who realize mainstream news is tainted, might turn to alternative media, to learn later on the same applies to alternative media: mostly controlled and fake.