That massive array of collectors seems to be a nutty idea. If a civilization could build such an extensive assembly, it seems it would require massive amounts of raw materials. Ejecting so much mass from the planet would seem to lessen the mass of their home planet, maybe enough to alter its orbit, it’s weather, it’s time calculations and its long-term prospects. My guess is that all good environmentalists seek skittles-pooping unicorns whose magical waste is an energy source as well as a tasty snack.
It could come from asteroids.
If a civilization is building a Dyson Sphere, it doesn’t need to eject mass from planets. It will simply demolish them wholesale for the mass.
How to demolish a planet ?? Increase its’ spin rate until it starts coming apart. The means of doing so are left to the alert observer as an exercise. . .
If humans were to build a Dyson sphere, we would use all the matter in the solar system, not just a little bit of the Earth. Except that in the Sun, of course. Jupiter alone is over 300x the mass of the Earth.
Besides astonishing physical manipulation capabilities, building such a thing would require the ability to transmute matter, changing it into other elements, and probably to manipulate matter on the nano scale in massive quantities.
Not presently known to exist material is strong enough to build into a Dyson sphere.
No presently known material is strong enough to build