I wanna rot away and give myself back to the earth so I'd kinda prefer the cardboard over planks of wood, toxic staining chemicals, screws, plastic linings, decorative brass and such.
It's even worse than merely profiting off of death - in the vast majority of interactions I've had with funeral homes and mortuaries, the fucking pressure to 'inter your loved one in a way befitting their legacy' - AKA - SPEND A WHOLE BUNCH OF MONEY ON THE DEAD PERSON BECAUSE THEIR CORPSE WILL CARE SOMEHOW is really fucking gross, and they're ghoulishly preying on people in the worst moments of their lives.
I know it's not all funeral homes, but holy fuck. 4 grandparents in the ground, two parents, a half dozen cousins and aunts/uncles - and every single time, there's some shit ghoul trying to max out the fucking silk trim on the corpse box that's gonna be put in the ground for a few centuries.
Are you thinking natural burial?
Is human composting legal in your area? It's basically they put you in a tube with some wood chips and flowers and let you decompose completely into soil - no insects, just the bacteria that's already in you, and no bones left behind at the end. Your loved ones can pick up the soil (which is literally regular dirt at that point) and plant a garden or spread wherever you want, just like ashes only greener because of the energy and pollution of cremation. In my area you can choose to send your soil to a forest that is being restored to help replenish nutrients on the forest floor too.