I'd say it's wishful thinking that you believe a majority of the population is going to visit all their news sources directly rather than simply ignore they exist.
News publishers were voluntarily posting on FB themselves to generate traffic to their own sites, it's some warped tough love view to think removing their ability to share content is somehow for their own benefit.
> It sounds as though you presuppose FB is or should be the only source of news.
Never stated anything remotely close to infer this false assumption, ironic that in the same breath you're lambasting FB for spreading misinformation.