The whole dark matter issue is a convoluted attempt to force inexplicable findings into the standard model. Physicists do not want to upset that apple cart by admitting their current understanding of gravity is deficient and not working out. This is indication of a long lasting paradigm in trouble.
That’s what scientists say believers do with G-d! Aristophanes, in Clouds, says that that’s what Sophists did with “The Void”. Geraldine Jones used “Da Debil” to justify her buying dresses. Michael Drosnin used space aliens to avoid saying that G-d devised the Bible Code. Who put the “bop” in the “bopababopbabop”? Who put the “ram” in the “ramadamadingdong”?