Because those animals are cool. You see the others you mentioned too, but you don’t see animals no one likes. It’s less soul searching and finding you are something else and more finding something cool and wanting to be like it.
Which, don’t get me wrong, i totally get. I’m a transhumanist, i understand being just human is a negative.
That’s nice and all, but progress isnt tied to the idea that trash needs to be respected. It is more important that every deserving personlive a decent life than it is to give those animals what they well and truly deserve (which is what we are all currently getting anyway). They should get a standard minimum quality of life because it is the easiest way to ensure those that do deserve it get it.