The window of persuasion is narrow. There is a limit to how far an opinion can be shifted within a given time frame and a given personality.
Most people are fundamentally ineffective at political persuasion because they consider their priorities or context rather than that of the person they are speaking with.
Fair. I tried to reason with that friend because we've known each other for a long time and I expected him to be more logical and do more research for a problem rather than just jump to a conclusion just because he liked it, without any proof of the information he used being actually true.
I wasn't even trying to convince him specifically that his mentality or political view was wrong. I was just trying to point out to him that manipulated information can be used on both sides, not only for "the other side".
With respect to media regardless of its source, I attempt to avoid forming an opinion stronger than the diligence I have performed.
If more people would do this, more people would be better informed. Alas, emotions triumph over logic.