Much of the homework assigned at my local public high school is repetitive busy work. I'm not surprised that students don't care. And some of it is a completely worthless waste of time, like literally making little arts and crafts projects that would be more suitable for elementary school. I know that teaching is a tough job but it seems like a significant fraction of them are putting in the least possible effort.
Math, reading and writing are all accomplished by repetition and building muscle memory.
The adults in the room saying you don't need that in order to learn are doing a disservice to the next generation.
There is also a lot of busy work but again work and being able to do work, sustain focus requires the development of that skill and muscle. Especially in this day and age where everyone is vying for your attention.