Why do people compare pussy to tuna??

All of us women know that our pussies do not and should not smell like tuna fish unless something aint right down there. A normal vagina does not smell like tuna. We all have our own personal smells and a clean fresh vagina does not smell like its been in fish water. Why do people compare tuna to fish smh. I hate it cause men do it all the time. I always here a guy that goes into a store and walk to the seafood area and goes it smells like pussy over here. Im like what kinda pussy you been around?? 😂😂😂