So, do you have an example of how these "mind antibiotics" work? I am seriously interested. This is a great idea, but how to execute it is a huge mystery to me.
Please tell me you are aware of the irony in what you say?
How in the world do you plan to be able to figure out what is true and what is not? Those people you deride are quite sure that when they know is true, and they think you are the one with the lies.
Some people have a knack for it, but even then it takes practice. The tools are logic, reason, and evidence. Does that sound trite? It should. But we live in a world where, e.g., a straightforward application of evolutionary biology to H. sapiens immediately yields conclusions which, if you expressed them in an American workplace, would compel your employer to reprimand or fire you. When reporting the results of logic, reason, and evidence can get you fired, the trite becomes the profound.
Those people you deride
I derided no one. Calling absurd beliefs absurd isn't derision.
are quite sure that when they know is true
You assume a false symmetry. They are mistaken. I know this the same way I know that creationists are mistaken. Creationists may sincerely believe they are right, but it's not ironic to observe their error.
Just a little thought for you: Imagine you were born 300 years ago. Would you be as sure about yourself as you are now?
Of course you would be. You would be wrong, but you would be absolutely certain you were right.
As you mature you will realize the world is not as simple as you think.
Knowing the truth is not possible.
You are acting like a creationist. No real scientist would talk like you do - they would be humbled by knowing just how often they were wrong in the past. They would only strive to learn, they would never be certain they own the truth.
Well. My confidence is born of study and reflection, not youthful arrogance. In fact, I am a middle-aged scientist (a real one!). I weight my degree of confidence according to my understanding of the evidence, reserving judgment when the evidence is insufficient to justify a strong conclusion. I'd guess you strive to do the same. Indeed, I'd bet you're confident that evolution is right, and you'd probably cut creationists even less slack than I would—which makes your "knowing the truth is not possible" pablum utterly disingenuous.