This wouldn't just affect abiogenesis. It would affect all matter including the elements that make up gas clouds, stars, planets, etc. Nothing could form if your guess was correct. In essence you assume this dark matter doesn't affect the hydrogen and helium atoms, and how they formed gas clouds and eventually gravity caused new elements to form, which led to stars forming and even heavier elements forming, and eventually planets forming, etc. Dark matter doesn't affect amino acids once they exist, apparently, only the conversion of inorganic chemicals into organic chemicals (abiogenesis). Is that your claim?