You're not wrong. That's why they've come out during this war about their real intentions, they had from the get-go of their secession aspirations. Even with many different maps and theories about how Hartis are guests in SL. That they have the choice of either accepting SL authority or leaving their native land for somewhere else?!?! Even with accusations of Darodism, when DH in fact are fighting for their lands against dulmi, and by themselves. It gets disturbing how they are parroting Kacaan rhetorics, threats, and even actions, that themselves claim to be victim of.
No wonder, even when Ali Khalif Galaydh and the most pro-SL Dhulo at time, who genuinely wanted to build a country together with Somalilanders. They did not appear, to even be honest enough, to create an inclusive governance/country. Which now proves your theory. Listen to Ali Khalif Galaydh, word by words, did he predict this scenario and everything you're saying. If this came from a pro-SL Dhulo, what about all those (who rightfully were/are) against SL. But they have now burnt all of their bridges with all Dhuhantes, as they failed them. United will they now build a prosperous future by themselves.
"Somaliland iyo reer Sh. Isaaq marti uu ma noqoneyno. Ama waxbaanu wada yeelayna, ama waxba isku manihi."
Now they're claiming that land is 'historically' theirs. They love copying the Yahuud, don't they? Word for word, copied and pasted from the Zi0nist playbook. Even during Futuh Al-Habesha (The Conquest of Abysinnia), in the 1500's, Harti were described as being from the "people of Mait" (aka Maydh, Sanaag).