"Mermaids. Are they real? Or do they exist? OR... are they super-real and super-exist? Those are the only options. Find out which one or all of the above will be confirmed by video evidence and expert testimony... on... the Discovery Channel Extra Science Edition of: REAL MERMAIDS OF THE MARIANAS TRENCH!"
Mermaids definitely don't exist at all or ever. They sort of do in media and people's imaginations, but that does not count! NO!
There are women (and some men) who fetishize being weird half-fish people and will SPEND MONEY on an expensive prosthetic/costume and go to parties to just sit there in some shitty water and pretend to be a mer-person. It's stupid.