I always report spam without unsubscribing. It fks up their score with google.
Every platform with enough technical resources should support one click unsubscribe.
I never understood the concept of making it difficult to unsubscribe. Marketers have a hard enough time getting users to open email at all. Let users help you clean up your subscriber list with an easy opt out to reduce your send cost and improve deliverability.
That, and there’s a high likelyhood the only thing the unsubscribe button would do is giving the spammers the valuable information that this email address is actually in use.