Unfortunately a lot of the models try to remove DM completely from either a gravity or CP perspective and both have direct consequences as to what sort of stable structures in the universe that allow to form. And the models often conflict with other observations showing theyre no better.

It's asif Newton observed an extra solar comet and therefore decided the Principia must otherwise all be wrong. It's a big step to say shinny thing in sky makes the Apple not fall as we observe it.