It is the only known force of nature capable of doing such a trick. What other known force of nature is 39 orders of magnitude more powerful than gravity?
I don't actually have a problem with the concept of "missing mass" or MACHO forms of "dark matter". I hear however that the "non baryonic" forms of "dark matter" are particularly tasty in the spring.

IMO "dark matter" is the least of your metaphysical worries.

Inflation! Now there's a metaphysical bad boy right out of human imagination. I can even tell you the individual that "made it up" in his head.
I believe that your cosmology theory is broken and needs fixing. I have no evidence that "magic energy" can accelerate anything, even if it's a placeholder term.