This drives me crazy. Greater than 90% of our mail is junk mail and goes straight into the recycling bin. I was watching some recycling process videos the other day, and when it came to bailing up the sorted paper, it looked like it was basically all junk mailers. We literally have systems that supply time and money to design the mailers, supply ink and paper and probably some plastic to make them, mail them, pass them around in the mail system, deliver them, then they're promptly thrown away or recycled, then they're carted off to be processed, and then the mailers eventually end up in landfills or partly recycled. It's insane. It's a closed system that does literally nothing but expend resources and output emissions.
I wish the government would make it illegal to mail advertising mailers. But then the USPS, which has had funding purposely cut by those who want their privately held investments to win out in the postal game or just hate anything that is available for everyone, probably relies on a lot of the revenue that comes from those mailers. So it continues.
I've found it's basically impossible to get rid of receiving them.