Have you ever used the phrase “I could care less”? If so, you might be using it incorrectly. It should probably be “I couldn’t care less”.
When you say “I could care less,” you’re telling people that you care right now, but under certain conditions, you could care even less than you do now.
When you say “I couldn’t care less,” you’re telling people that you care as little as possible about this issue, that there’s no way you could care any less than you do now.