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That evidence is not evidence of dark matter (that's the problem), it's evidence that we've modeled gravity or spacetime or inertia or whatever wrong.
It's like drawing triangles on spheres or other non euclidean spaces, but for mass/inertia. Maybe the problem with the Hubble constant is the clue.
If you need a big fat invisible undetectable magic amount of mass or energy to make it all work, perhaps some of the underlying assumptions are incorrect.
It might be a big fat invisible undetectable magic amount of mass or energy, but it's not the only option. It is an inelegant option.
How can any change to gravity globally accurately describe the bullet cluster? I've never seen a MOND theory even try to do that. They keep talking about galaxy rotation and forget all the other lines of evidence.