I think El Dorado I a lot like my county. The Grand Jury probably tried to subpoena state agents for violation of local rights. Their County Counsel likely told them they couldn’t. They likely tried to establish their own independent court and were told they didn’t have that power either.
I’d have to lean more towards their being asked to do something they refused to do. 14 out of 19 resigned, leaving only 5 willing to obey; so I suspect whatever it was, was so repugnant, and so coerced, that they decided to resign en masse.
This hearkens back to American colonial days almost to the 20th Century, when judges directed juries to issue guilty verdicts, which resulted in jury nullification, and threats by the judge to punish the jury for contempt, as well as double jeopardy prosecutions by the government.
Since this was a civil grand jury, I suspect that they were directed to reach a conclusion outside of the evidence, for political reasons. Most Americans can be stubborn as mules when ordered to violate their principles.
This brings up a litany of the coercive use of power by the Democrats in California, as well as the fears of the people in this county of abuse under the auspices of Agenda 21.