Shou Tucker was a misunderstood genius pioneering the way to Neko and Inu girls.
Not a furry. There was is no central human in the mix.
A furry is a human who believes/"knows" they're the wrong species, and/or acknowledges their humanity but wishes so hard that they weren't, and/or is willing to enter into alt-personality fantasy to a level that non-furries might say is taking it way too far. Importantly, furries have a preferred non-human form.
This spell has created a Canis Familiaris Sapiens. No Homo.
(sorry couldn't resist)
That's what she* is and there's no reason to believe that she'd want to be anything else.
Now, it is vaguely possible that she ends up wishing she wasn't Canis Sapiens and wants to be a human being instead, but that would probably make her a reverse-furry.
And if that doesn't mess with your head, I'm not sure what she'd count as if she doesn't want to be Dog or Man but something else entirely. What if she wants to be a Cat or something. Is there even a word for that?
* Using female pronouns on account of the breasts, but that's a glaring assumption now that I think about it. Maybe this creature is male. Or neither. There's no way to know.
Not sure where sex comes into this; there's no implication of that intent in the comic that I can see.
But you've opened a can of worms. One of the main issues that makes bestiality illegal is the animal cruelty / distress aspect. Here, what-, or whoever pops out of this spell may be capable of consent for such shenanigans. As such it wouldn't necessarily be cruel, and so might not qualify as illegal, at least not for that reason.
I'd be surprised if any jurisdiction has legislation for inter-species sexual relations where both parties are sapient and can consent. There's only one sapient species on this planet as far as the laws are concerned. (Yes, yes, dolphins might be, and so might squid. The laws aren't there yet.)
That said, I'm no lawyer. There are, or have been, laws against inter-racial relationships, that is, between members of the same species (although I'm not sure the lawmakers who wrote them necessarily agreed with that assertion), so those laws might end up being resurrected with certain amendments because "ew, dude made a sapient she-dog and got jiggy with it. that ain't right."
As for the morality and ethics, hell if I know. I don't want to have sexual relations with a sapient she-dog any more than I want them with certain members of my own species.
A furry is a human who believes/"knows" they're the wrong species, and/or acknowledges their humanity but wishes so hard that they weren't, and/or is willing to enter into alt-personality fantasy to a level that non-furries might say is taking it way too far. Importantly, furries have a preferred non-human form
You are thinking of therians/otherkin. Furries are just humans who enjoy animals with human intelligence in human situations.
the furries from lemmy.smeargle.fans sure are persistent, waiting for your moment of weakness.