Earlier quoted context omitted.
These aren't issues with nullification, they are issues with the "jury of your peers" system in general. Of course that, like democracy, is often deemed to be off limits for criticism simply because a few hundred years ago we agreed it was the best idea around.
Do you have an example of a better idea?
An easy improvement to the jury system would be to ensure all jurors are aware of the relevant rules. For example, they should all be aware that nullification is a legal option. Related to this, the system by which jurors are selected needs an overhaul so heavy that we might as well scrap the current system.