Why? It seems like the most effective way of unsubscribing to junk mail.

Besides, "if you believe in something, you sign your name to it" https://m.youtube.com/watch?v=GujKyNduy0c&t=69

You don't have to be an ass to the wage slave opening the return mail, but you can still send them a message. Print out joblistings for the return address area and return them. Maybe add a few Bible quotes. But make sure you are remembered by getting a stack of sassy stickers from temu and putting a few in there as a little gift.