My problem is that, in the modern world, many people attempt to merge truth with fact, and thus convolute the meaning of both and creating cognitive dissonance. Because truth is highly subjective, it is a daunting task to convince others and affirm a universal truth. Such is the case with Christianity, Judaism, Islam, Marxism, various philosophies, Buddhism, (you get the picture). And so we find that people will apply "truth" to the tangible world, like one will apply prayer to illness, and so it becomes - quite literally - an imaginary scalpel. Dangerous.
I also find that we dehumanize others in the name of truth, the same way that the Nazis dehumanized the Jews by painting caricatures of them, the same way Christianity dehumanizes non-Christians by condemning them to hell, the same way Stalin executed enemies of the state. Forming universal truths that do not incite some sort of tribalism is like trying to mix all the colors of the rainbow in to one, while still maintaining the originals.