I know this is your livelihood, but as someone who basically never wants marketing emails, all I can think is "nice" hopefully I get auto-unsub'ed from a ton of lists.
This year i decided to do "something" about it, so every mailing list mail received in my inbox that i don't want/care for gets an unsubscribe. It has already reduced my daily mails by a somewhat large amount. It's hard to say exactly how much, but i estimate around 10 emails less every day.
Most of the unsubscribed lists are from companies where i've purchased something andthe seller took the liberty of subscribing me to their mailing list. Those are mostly pre-GDPR that i've just never gotten around to dealing with.
The execption is of course obvious spam mails, to which unbsubscribing will probably do more harm than good.
Rant: As I side note I usually try and buy direct when shopping online rather than through Amazon (for all but the most trivial purchases) and this is the 2nd largest drawback (behind filling in CC and shipping info) - because I bought one item from you, once in my life does not mean send me a daily email, and then when unsubscribing pretend like I signed up for them! For me it’s one of the easiest ways to destroy brand loyalty/reputation.
Plenty of critical communications get caught in this storm...