So people who at some point liked enough anti-vaxers posts to cross the threshold will never ever see any article presenting the facts that prove it's not true?

So people who at some point liked enough anti-vaxers posts to cross the threshold will never ever see any article presenting the facts that prove it's not true? And beside why would you want to serve users only the things that they agree with? It's not good for them, just makes them more stupid & easier targets for disinformation, but it's not good for Facebook neither because people love arguing online and cutting it down means also cutting the user interaction with the platform too.