Quite. I too am astonished at the contortions gone through to explain away the fact that their theories don’t explain the observed facts, rather than considering the possibility that their theories are themselves wrong, and trying to develop new theories that DO explain the observed facts.
OTOH, maybe dark matter does exist. I just object to the assumption that it MUST exist.
I also wonder if some of these anomalies might be explained by the existence of the other 8 or whatever dimensions required by the various string theories, etc.
Something like the "ether" that used to be posited as the medium that allowed electromagnetic waves propagate through vacuum.
11 dimensions ~ all intuited by Orthodox Jews ~ and rendered into math more recently by a montage of Hindu, Moslem, Buddhist, Christian and Jewish mathematicians and physicists ~ the math says they are there. Just the other day we discussed a recent discovery that suggests strongly that we’ve located one ~ the business about the self assembly of nanoparticles of gold into a ladder instead of a string when placed within the bounds of a DNA outer structure ~ all good stuff!~