I doubt more than 1% of marketing emails are desired. They may as well be spam. Forgetting to check a box, or to uncheck a box, or accidentally checking a box, doesn't make them wanted. Not wanting them anymore but also not bothering to go disable them doesn't make them wanted. It's fair to class them with spam.
[EDIT] I mean 1% of marketing emails where there's any relationship between the sender and the recipient whatsoever, of course. All others are spam, clearly.
> No, [...] marketing.
Excuse me while I lol.
(It might be completely wanted marketing, just amused me; almost all spam is marketing for something.)