If some lawyer decides to stand up against Apple and start a class action suit for breaking so many people's phones through iOS 11 to the point of being unusable, I'm sure they will get a lot of supporters.
I really don't care for another iPhone and I don't like being forced to upgrade because my current iPhone which used to work perfectly fine and is not even an old phone is completely broken. All apps take more than ten seconds to boot up. And I know I'm not alone because I've seen other peoples phone in person.
There should be a crowdfunding platform for class actions like this.