Can you not see the potential of space exploration/settlement? There will be industries we can't even imagine that will be worth trillions. Imagine an economy that is more massive than all state economies on earth combined. That is space in the next 50-100 years.

Public funding and government obviously because they were the only ones with the capability for space exlporation up until maybe 10 years ago. Now that the private sector can, it will, and much more efficiently than government ever could.