So your intent is to give us pause in our assessment of un-evidenced myths?
And you think the evidence for dark matter supports that intent?
Religious people should not try to science. You don’t understand it. You are so bad at it.
Dark matter is not impervious to detection. Vera Rubin having detected it is why we know it is there. Just like microbes were unknown until van Leeuwenhoek discovered them.
None of this has anything to do with excuses for your god.
Unlike microbes and dark matter there is nothing to evidence your god. If that should change then science will assess that evidence and embark upon yet another great quest for knowledge.
Until then your god is no more worthy of consideration than any other un-evidenced conjecture, like the tooth fairy.
There are physical characteristics of this reality that are impervious to detection.
And you know this how? Tell us about these physical characteristics that are impervious to detection?
Eschew obfuscation. Habituate elucidation.