Neutrinos pretty much don’t interact with anything, including other neutrinos. Black holes are singularities, which arent intelligent, nor meet any definition of life.

Dark matter... well given that we can’t even describe what it is, I’ll pencil that in as “maybe.”

Regardless, all of this is pointless speculation with no evidence to support, nor even inform this line of thought. One might as well be arguing about a pinhead’s carrying capacity of noncoporeal entities, the nutrient value of unicorn meat[0], or flat earth geography.

[0] While the meat itself is superficially similar to horse meat, it’s unfortunately poisonous due to the Unicorns’ Unfortunately, there’s none, due unusual biochemistry involving arsenic, lead, and polonium.

It's irrelevant anyway: the argument is specifically about the conditions required for "...an Earth‐like planet to produce an intelligent civilization of a type that would be visible to us with our current observation technology".

Intelligent clouds of dark matter just don't bear on the argument, whether they exist or not.