Gravity is defined by the mass of two objects combined over distance. It is fundamentally based on physics, in the real world. The Force is not, unless this was mentioned somewhere? Is the Force some actual formulaic property of the universe? if so, I can accept your point. If not, however, I can't. And that's what the next paragraph is predicated upon: I see no evidence that the Force is like Gravity, thus we have no evidence that you cannot manipulate the Force and draw its energy.
You want me to provide an analysis on Star Wars fictional physics to prove how the Force works in the movies?
I'm not committed to doing that.
Facts - Yoda, Obi Wan, Luke Skywalker, Darth Vader and The Emperor are five of the strongest force users in all of Star Wars canon.
Of those, only the Emperor was able to use force lightning. And when used, it was less powerful than a taser (one could still talk while being electrocuted).
Luke, one of the strongest Jedi ever, is unable to Force Pull his five pound light saber past certain mundane obstacles at points in the movies. The thought of him pile driving someone with the Force is silly.
Yoda, a master fighter and Force acrobat, could jump three, maybe four times his height. Star killer is seen flying, leaping and flipping to lengths seen by superheroes.
When the movies have being able to weakly choke someone as one of the most powerful moves you can do, then you can't help but look at a game like TFU and laugh.