Quite true. Analogous things happen in print, though: people often read only the sections of papers which interest them (and, at the extreme, consciously skip those op-ed columnists which raise their blood pressure).
However, in the old days, you could get away with fake news, and today, you can get away with fake news (even break the law, because it's the internet, and you can write in English and have .com or .us domain in whichever country you want), and it's even lucrative to do so!