You describe the messed up human condition, as being the result of not possessing the facts. The big problem with your view is (how does one know what facts are , as opposed to lies). Where can one turn to, to find the facts in any matter when the world is full of lies and deception.
The reality is, every individual embraces whatever truth or facts suit them best. So there is no such thing as absolute truth or absolute facts in this world, we create our own truth and our own facts as we see fit. Today every opinion and and belief system is equally relative and valid, so you need to define what you mean by facts before you can even attempt to convince another autonomous individual to accept your theory.
In summary, everybody has their own opinion and most will fight you to the death if you try to convince them that they may be wrong. So it's virtually impossible to convince anyone to join you in what you believe to be facts or your truth. Everyone like to have the freedom to choose what they believe and what they reject as falsehood or lies.
Everyone is born with a need to fight for something, it's gives us a sense of purpose, justice and belonging. This is why the world has been soaked in blood since the beginning, we have countless factions pitted against each other ideologies and beliefs. The bloodshed has always been over forcing others to live under your rule, since we believe we deserve to rule as we are right and they are wrong.
The world will continue as it always has, no amount of convincing will ever result in someone abandoning their beliefs to conform to yours.