Why does shipping from Amazon take weeks now?

For as long as I can remember, shipping to Maui took maybe a day or two longer than to "the mainland". Now it's typical for shipping to take two weeks, and there is often a delay which stretches it even longer. It's not just due to the current "not war" impact on jet fuel prices and global shipping, this has been getting worse for the past couple years. I've found discussion on various forums but they're all about the general logistical challenges with shipping to Hawai'i, and no one seems to have any explanation of why Amazon takes much longer than it used to.