Why do you bother fighting to unsubscribe properly with a company like that? I have a rule: I will try 1 time to legitimately unsubscribe, using the normal flow

Why do you bother fighting to unsubscribe properly with a company like that? I have a rule: I will try 1 time to legitimately unsubscribe, using the normal flow. If you keep sending me email after that, I will mark every email you send as spam and my email provider will stop delivering your mail. I started doing this years ago after watching a talk by some Gmail devs on how they think of spam. They said they internally - controversially - redefined spam to be any email the user doesn’t want to receive. Well guess what? I don’t want to receive shitty marketing emails after I unsubscribe. If you send them to me, I’ll get you listed as a spammer. I encourage everyone else to do the same thing. Life is too short to put up with this crap.