LotR magic isn’t supposed to be technology, it’s literal-god (Eru Ilúvatar) created everything by singing, literal-devil (Morgoth) has a different and incompatible song, some legendary things happened (only in-universe they actually happened and aren’t mere tales like our myths, and the elves being immortal can remember them), and then the literal spirits of literal minor angels (Maiar) took human form and did magic as the wizards.
