It is very easy to use presentism to criticize and not understand the context as to what led Kamehameha V to take the actions that he did that led to the Constitution of 1864. Let us look at the changes of the Constitution of 1852 versus 1864.
First of all, Kamehameha V did increase his power as well as consolidated his power by eliminating the office of kuhina nui and eliminated the Privy Council. I find what is so terrible about that? If the King felt those institutions were not effective in the smooth running of his nation and were actually creating more bureaucracy preventing the changes necessary to improve the lives of his subjects, who am I or anyone to challenge his right to do so?
Second, he combined the House of Nobles and House of Representatives into one body. Again, is there a problem here?
Finally, he added additional voter qualifications of literacy and the ownership of property. Although I would take some issue of the property qualification, I see no problem with having only literate people having the right to vote.
Ultimately, the citizens of Hawaii did not mind the changes as none of the legislative body nor general populace took any substantial legal actions to challenge the Constitution of 1864. In fact, if there was any Constitution of Hawaii that could be considered not enacted by due process, it was the American descendant business and political leaders that used their legally own firearms at gunpoint to impose the infamous "Bayonet Constitution" of 1887. If you want to split hairs on this particular subject, why did you not mention this act committed by the same individuals who would later illegally overthrow Hawaii's last Queen, with the sole goal of annexation by the US?
It might be "difficult" for people to challenge the dictates of a dictator, much less challenge them successfully, as history has only too abundantly shown. More likely end up in a ditch somewhere.
I have no problem at all with you supporting dictators who arbitrarily throw out the rule of law when it suits them, and you. To each his own. But if someone makes an effort to have that system imposed upon me I will do what I can to stop that effort.
I understand from your previous post that you fail to understand that you are picking and choosing which "violations" of the law you selectively present that ought to be "corrected". In your one pet case you are adamant the the law was violated and must be followed to the letter, and in the other cases involving your history, you turn a completely blind eye to gross violations of the law with a wink and a nod that if the law-breaking dictator thought it was a good idea, then it must have been a good idea.

I find your rationalization of the "king" violating the constitution by unilaterally throwing it out and replacing it illegally with his own new version that greatly consolidated his power as due to being "necessary to improve the lives of his subjects" to be disingenuous at best.
Of course one of those things "necessary to improve the lives of his subjects" was to make sure there was no right or law of any kind protecting what the U.S. Constitution recognized as the pre-existing natural human right to keep and bear arms.
Overthrew the constitution. Consolidated power for himself. Unilaterally "announced" the new constitution (as written by him). No provision for keeping and bearing arms. And for you: "I see no problem". I'm sure you'd use the same language if Trump did the same in the name of doing what's necessary to improve the lives of the country's citizens. Right? Yet, this "violation" over here... holy crap that's really really bad and we need to do something about it. I hope we don't get fooled again.