Right But it's possible for the Force to exert itself on a non-force user if propmpted by a force user. Now the question becomes can it do so without a Force user? Which I think boils down to does the Force has a will. I think the movies telegraph strongly that yes, the Force has a will because it likens the Jedi Cult to a religion and several metaphysical claims of the Jedi are confirmed on screen while none of them are denied.