Dark matter arose because of gaps in the current particle theory. These gaps grow the further out we observe and become significant enough to disqualify gravity as a constant for the formation of galaxies. Dark matter provides an incomplete solution to these gaps just as dark energy is an incomplete stop gap to Einstein’s cosmological constant.
The logic is as follows:
* There are gaps in current models that otherwise invalidates math and disqualifies observed measures.
* Dark matter/energy provide a partial solution that may or may not exist but are sufficient to performed qualified measures across observed space.
* Therefore dark matter/energy provide utility value that for conducting measures that otherwise observationally contradict.
* Therefore dark matter/energy must be because they are qualified as such by the math.
This problem is syllogistic wherein a series of propositions are individually true and linked so therefore the conclusion of such linkage must be true, but it isn’t. In physics truths exist as proofs. The problem isn’t that dark matter exists or not, but that incomplete logic demands it must exist.
Again, it is a confidence problem, that it must exist and anything to the contrary should be censored to hell. People have staked their entire professional reputations on this confidence built on logic, not observation.
The actual physics problem that produces all this mess in the first place is observational limitation. Already the JWST is slowly peeling back some reliance on magic solutions allowing for alternate considerations and better math. Ultimately we will need to observe the universe from outside the solar system and it’s internal distortions.