Earth has no magnetosphere is a fact.
Magnetic force decays at 1/rrr. Earth magnetic force is 0.3 gauss at sea level. How strong it will be at space beyond earth atmosphere? How can such weak magnetic force in space around earth becomes magnetosphere?
How can so called such magnetosphere protect earth from what solar wind?
How can such magnetosphere capture and held charged particles in space to become Van Allen Belts around earth? What mechanism?
No magnets can capture and held charged particles in labs. There is no mechanism to make it happen.