a list of hybrids these people likely don't cry about:
-Mule
-Savannah cats
-Bengal cats
-Wolf and Coyote domesticated dog hybrids
-the Myriad of songbird hybrids in the hobby
-Boysenberry
-Grapefruit
I know it's a belaboured point. Hybrids don't really appeal to me but as long as they are kept healthy and fine then I really don't care. People keep uglier animals than blood parrot cichlids, so what do I care?
Edit: Also just cause I know it's gonna piss a few people off, Humans are a hybrid of a hybrid. After the chimpanzee/human split, it appears we interbred repeatedly. This is because "Different regions of the human and chimp genomes were found to have diverged at widely different times, and the two species' X chromosomes show a surprisingly recent divergence time."
Then after that was all done, we know that humans and neanderthals interbred- particularly Europeans, East Indians, Asians and first nations, with Europeans showing ~1-3% Neanderthal genetics. The most is in Northern Italty, though I personally am half German and show about 2.8% according to national geographic genome project that my brother contributed his genes to. This doesn't even take into account the potential for concurrent species like (potentially)
Homo erectus and
Homo sapiens to have mated. Remember: if a human can do, they will do. So getting all pissy about hybrids is technically a hilarious thing for people to do. (end divergence from topic, lol)
http://news.nationalgeographic.com/news/2006/05/humans-chimps_2.html