The "mechanism" for gravity is no more or less explained than the "mechanism" for electric charge, the essence of which is still unknown. We have a theory to relate the effects of electric and magnetic fields. We also have a theory to describe the effects of a gravitational field; it is called orbital mechanics, the force and acceleration between two (or more) objects of mass. Frederick Kantor had an information-based theory of gravity, but I read his book a long time ago and can't recall the details.
You don't like "spacetime" and bending? Neither do I. So what? Bad theory does not displace existing observational reality.
The "mechanism" for gravity is no more or less explained than the "mechanism" for electric charge, the essence of which is still unknown. We have a theory to relate the effects of electric and magnetic fields. We also have a theory to describe the effects of a gravitational field; it is called orbital mechanics, the force and acceleration between two (or more) objects of mass. Frederick Kantor had an information-based theory of gravity, but I read his book a long time ago and can't recall the details.
You don't like "spacetime" and bending? Neither do I. So what? Bad theory does not displace existing observational reality.