Pardon the barely detectable difference in gravitational acceleration out of me. What is your problem?

Are you familiar with the hydraulic analogy in E&M? And how it's not perfect for all behavior in actual electrical circuits?

My analogy isn't perfect for the effect of many randomly dispersed tiny point masses (certainly <kg, we have to agree?) on the orbits of planets (10^20-25 kg?) around stars, but I get the intense impression that you're actively refusing to see how it might be useful in someone trying to understand undergrad-level astrophysics in spite of it not being a perfect analogous model for the nature and distribution of dark matter in and around our galaxy.

Yeesh.