The camps state these facts themselves. You can make this point from their own teaching.
In the 1990s the Israelite Church taught in public that Christ would return in the year 2000. He would destroy or enslave the Edomites.
The teaching is tied to a teacher named Ahrayah.
The year came and went. The organisation rebranded, and the leadership changed hands.
All of that sits in the movement's own record, not in a critic's account.
Most present-day camps disown the man rather than defend the prediction. ISUPK and IUIC are separate groups.
The movement has no central authority. So one camp's failure does not bind another.
That is a fair point about scope, and you should grant it.
Deuteronomy 18:22 gives one rule for a voice claiming to speak for God: if the thing does not happen, God did not say it. That is the same test this site applies to every other movement it examines.
They admit this themselves: the prediction, the failure and the rebrand are all documented. But keep the scope narrow.
This binds one lineage, not the whole movement.
"What happened in 2000? And what does Deuteronomy 18:22 say about that?"

That was one camp, not all of them, and Christians had William Miller in 1844.
Camps today mostly answer by disowning the man, not by defending the prediction. ISUPK and IUIC are separate bodies from the Israelite Church of God in Jesus Christ. A teacher in one camp does not bind another. The movement has no head office. So blaming all of them for one camp's failure is like blaming all Protestants for one denomination's date-setting.
Some add that Christians have no standing here. They point to William Miller in 1844, and a long line of Christian date-setters since. A failed date does not disprove the identity claim underneath, they argue, any more than Miller disproved the resurrection. Others reframe the date. It marked a turn in the spirit, or a sharpening of judgment, rather than a visible return.
They admit it themselves. But keep the scope narrow: this binds one lineage.
Graded admitted, because it is all in the movement's own institutional record. The prediction, the failure, the rebrand and the succession are documented.
But grade the scope conservatively, and say so on the page. This binds the ICGJC lineage. Today's ISUPK or IUIC member can fairly say it was not his camp. The comparison with Miller is fair too. Christians should own their own date-setters rather than dodge.
What remains after both concessions is still substantial. Deuteronomy 18:22 is a standard the movement applies to others. The answer to failure was not repentance. It was a rebrand, and a leader claiming to be the Holy Spirit. And the same lineage produced the doctrinal apparatus the street camps still teach.