I'm just having fun with the hybrid/purity arguments...mileage may vary. Just poking a stick....besides, everyone who reads my threads knows I love parrots. I like flowerhorns too, but not at first. Shoot, humans are hybrids according to scientists, so there you go. Any extreme view is liable to hit a wall since nature always mutates and adapts new characteristics over time. Hybridization occurs naturally although some species don't do it. When species overlap geography is where diversity usually occurs. Its unknown if even the current natural strains of fish aren't genetic mutations/hybrids that stabilzed from ancient past. Artificially created strains is a different deal. At the end of the day if the species is healthy and functional who cares what they look like. I said in another thread it isn't a beauty contest (where humans have their own prejudices and opinions over what is beauty)."Ugly"..."meh"..."better looking"..."ugly asf"...it sounds as thought the only criterion for whether or not they should exist is whether or not they fit your personal idea of what looks good. Those that don't are "pointless"?
Most dog breeds were originally bred for a purpose or a job, whether that be hunting, retrieving game, defense, etc...but, yeah, many breeds are also bred for their goofy looks, just like fish. Domestic cattle were developed originally for the qualities that make them valuable in agriculture: milk production, meat production, easy handling (i.e. docility)...but, yeah, there are "fancy" breeds of cattle also, bred for appearance, just like fish. And those are single species, simply linebred to develop or subdue certain traits. All dogs are the same species, as are all cattle and horses and other domestic animals. But hybrid fish are crosses between two different wild species, and are all pointless! Even the very few fish that have been bred to do a job...Betta splendens leaps to mind here, and the job would be to win money for their owners by killing other bettas...have now been goofed up and repackaged to the point where they are useless for that original purpose.
Almost all the bison in the U.S. today have a significant admixture of genetic material from domestic cattle; cross-breeding was done to inject some of the docility and other benefits of cattle into the giant pile of wonderful meat that is a bison. Nowadays, there remain only a couple of herds of "pure" bison...I italicize that word because you seem to think that it is somehow evil or funny, but it's not...still in existence. The word used to describe a species that has been crossbred out of existence as a pure form...is "extinct".
But, hey...as long as they look cool, what else really matters?
The thing with dogs goes beyond goofy looks. A lot of the breeds that drool can't close their mouth due to genetic deformity (sound familiar?). Or they have chronic breathing issues, kidney and heart conditons, or prone to weak bones. Larger the dog breed, shorter the lifespan. Or the longhairs who get constant eye infections from hair in their eyelids called tear eye or black eye. Crazy stuff. I used to trim/disinfect dog's eyes. Not fun.
I've always been big on personality over looks. Beauty is only scale deep. LOL You can like a pretty fish, but you'll love one with personality.