I'm not a believer in the Dark Matter fudge factor, and more importantly neither is our associate Dr. Mike McCullough. See his paper here : - http://www.m-hikari.com/astp/a…20/p/gineASTP1-4-2020.pdf. Mike also has a very readable blog at :- http://physicsfromtheedge.blogspot.com/
I see little reason at the moment however to doubt the ubiquity of UDH/UDD throughout the universe, in space and in some form within solid matter. It seems entirely possible that this condensed material, was perhaps created at the instant of the big bang or is maybe formed within and ejected from dying stars. After all, almost everything else in the universe has been made by stars. It does have a possible role in cold fusion, and - here's an outrageous hypothesis for you- perhaps in the form of 'natural cold fusion' it made all the heaviest elements. To assume that cold fusion/LENR only happens when scientists do it to is ridiculous - a natural phenomenon will occur naturally, whenever and wherever the local environment allows it to.
To make things clearer, in the way I described, this condensed form of hydrogen would (at least in some state) essentially be akin to the luminiferous aether proposed at the end of the 19th century and for which evidence was not found at the time. This could possibly mean rolling back physics at least 100 years, invalidating much of quantum mechanics, of what is known about electromagnetism, the vacuum and so on. So it would not be simply a fudge factor, but a fundamental model change of how most known physical phenomena operate.
Of course this is only a pie-in-the-sky idea, or if you wish, shower thought. One cannot simply reject most of 20th century physics, although some have tried to.