There are no evidence that neurons create consciousness. For all we know neurons are receivers of consciousness.
You shouldn't pick out these examples, they are supposed to broadly exemplify the concept.
eg: Nirvana fallacy assumes socialism is unattainable when many of the best parts of existing society are socialist (public health/education/legal aid, many small businesses, self employed people, large co-ops, credit unions, etc).
edit: Mostly The Nirvana Fallacy is itself a meta-fallacy, as most of the time it's used to justify things being shit by accusing the proposed alternative of being utopian (the sub-fallacy). I seem to remember George Orwell wrote a large part of an essay dedicated to how totalitarianism relies upon such fallacies ('pragmatism', 'realist', etc)