The phrase "false illusion" means to believe in something that appears real or true, but it is actually not. It refers to a deceptive or misleading perception of reality. Full definition
The Feed also stresses how social media can be a deadly distraction, as it can create false illusions of wellness and progress in the world while the environment degenerates and climate change runs rampant. (theverge.com)
He doesn't want investors to have false illusions about -LSB-...] (gocrypto.site)
«A lot of the modern risk - management techniques created a totally false illusion of safety. (mastersinvest.com)