Bulk unsubscribe in Gmail

Back in 2021 I added an idea to /ideas that would scan my email inbox and provide a single page containing unsubscribe links that have been scraped from emails. Here was the proposal:

A UI that reads all emails in a folder and shows all emails with an unsubscribe link.
Provide a way to group by sender / subject / unsubscribe URL
I'd like to be able to choose which folder this runs in (minimum Inbox + Trash, but ideally any folder/label)

Today I learned that Google have built this themselves. In your inbox, click on More in the sidebar and then choose Manage subscriptions. You'll see a screen that shows you email volume from each sender and allows you to unsubscribe with a single click.

Now, I need to go and unsubscribe from all of these Kickstarter platform emails that I always delete without reading...