Merging and even splitting of Electric Dark Matter BHs (EDMBHs) is in line with Quantum FFF Theory.
Even the base for a complex self evolution system of galaxies and nebula.
see: https://www.sciencenews.org/article/if-real-dark-fusion-could-help-demystify-physics-puzzle
and : Insights on ( Electric) Dark Matter from Hydrogen during Cosmic Dawn
https://arxiv.org/pdf/1802.10094.pdf
Quote: "But dark matter may not be totally antisocial (SN: 3/3/18, p. 8). “Why wouldn’t the dark matter particles interact with each other? There’s really no good reason to say they wouldn’t," WHICH SEEMS AN INTERESTING QUESTION
because according to Q-FFF Theory, dark matter is the same as black holes from nano quantum (Higgs) knots ( ball lightning) up to comets and supernova BHs .
So the merging of small BHs making larger ones is already proven by the LIGO observations.
Conclusion, the LIGO obs. are a support for Q-FFF Theory postulating that all Dark Matter is based on ( axion-Higgs ) black holes, of different nuclear sizes.
Secondly, that equal sized dual BHs are producing Herbig Haro systems with a stellar pressure cooker in between. see also: http://vixra.org/pdf/1710.0257v1.pdf
youtube video on electric dark matter proposals:
https://www.youtube.com/watch?v=5I9dsfAw1qE