Facts are certainly part of the equation. In addition to facts, we could benefit from stronger epistemologies for determining how we define a truth or fact. The mechanisms many use for justified belief are not as sound as they could be. When people start using an epistemology based on things like reason, logic, evidence, skepticism, the scientific method, etc, then we can start talking about the truthfulness of falsifiable claims (i.e. "facts"). Unfortunately, many still rely on epistemologies based primarily on eye-witness testimony, personal experience, tribal norms, anecdotes, divine inspiration, etc. If they were to change epistemologies, it might also threaten other aspects of their worldview which is a very uncomfortable process.
Many modes of thinking are so different that it prevents people from having conversations where understanding about factual events can be determined and agreed on.
We need to fix our thinking in order to fix our world.