I've always thought that was a stupid option. "Oh, I'm unsubscribing because I'm really interested in your newsletter but my significant other insists I check this box"?
By definition, if you're Unsubscribing it's because you don't want them anymore. The meaningful question is why!
Here's the options that I'd love to see (not applicable to you, just in general):
▫️Because you're the 10th person to email me multiple times a month. I'm trying to do a digital cleanse.
▫️Because every time I hear from you, you ask me for money (see, every single political candidate or organization)
▫️Because, while I'm sure your MasterClass is the bee's knees, I'm on a fixed income and I prefer food to uncovering your super secret patented formula that is only available for this unbelievable price until tomorrow.