A simple definition of "worldview" is the way one thinks about the world around them. A worldview is a mental model of reality — a framework of ideas & attitudes about the world, ourselves, and life, a comprehensive system of beliefs. Worldviews either conform to reality ... or don't. There are no gray areas, no in-between, no maybes. A worldview is either true or a figment of imagination.
Those who adhere to the one (and only) true worldview will be severely castigated by those holding the deluded worldviews, but should rejoice (Luke 6:22-23). By definition, insanity is the denial of reality. Sadly, despite the best efforts to free them, most that stubbornly cling to a fictitious worldview will never emerge from their lunacy and will ultimately suffer the eternal consequences of their mad fantasy (Matt 7:13).
On the other hand, those that are secure in the true worldview are gloriously and truly free ... forever. (John 8:32)