So that makes a case for naming them differently.
Hawaiian shirt is a crude marketing term that's only used outside of the original audience of the item.
I'm an Iowan, and I don't need you to tell me what something I grew up with actually is. Not to come off as rude.
The Hawaiian/Aloha shirt is a knockoff of a European design.
>So maybe give those of the originating culture the benefit of the doubt.
The originating culture was European. The Hawaiians "culturally appropriated" the European shirt design and made something new and awesome from it, so awesome that it then became popular outside the islands.
That's how it works.
But it'd be like if you grew up buying "Mexican hats" from Walmart. It's a sombrero - they have other hats in Mexico, including hats they came up with, so your terminology is bad even if it's been working for you.