Arguing on the internet is oftentimes about as useful as peeing against the wind. Sure, you might really need to get it out, but it almost always ends up spraying back in your face.
People's opinions rarely change no matter how much evidence you bring to them. No matter how many good points you make, no matter how many other issues you present that are way more important to focus on than the inconsequential, often sensationalized issues they choose to focus on - you won't change someone's mind on the internet.
Oftentimes, merely criticizing someone's point or questioning them will have them cry "persecution" and that you're being unfair to them. It's a trait tons of dictatorial regimes have utilized in discrediting media agencies for catching them in lies and exposing the weak points in their propaganda.