My apologies. I’m usually a “there are no objects only forces” guy but when I tripped over mathematical morphology I finally feel ok talking about objects as the ambiguity of their nature is acceptable.
You can go to infinities if you like. All is one. All is connected. That’s good and ok.
But – if you need to get things done, the ability to split everything into parts is practical.
One good way to do that is to say: Everything smaller than [this] or larger than [that], I will put aside and call it “gap”.
What’s left is objects.
You talked about empty space in physics. I did not. I was talking about gaps. Gaps are always filled with ‘something’.