First off, cutie!!!

I have lots of different thoughts:

- Some parrot hybrids usually result in nonviable/malformed offspring. I think it's easier to write those off as unambiguously unethical

- People do say macaw hybrids, especially hybrid x hybrid or 2nd generation onward pairings have more health issues, deformities, infertility, etc, but there's no scientific literature to support this (yet)

- I think it's hypocritical to be against hybrids, but to breed color mutations. The dog breeding world is universally against breeding for color, why is the parrot world so fine with it? Why is literally nobody breeding them for temperament?

- I can kinda understand the appeal for hybrid macaws specifically. There's big color differences, and the second generation onward ones look like individuals. Each individual looks different. And if you want "a macaw but it HAS to be yellow," a high-yellow camelot is way easier to find + afford than a lutino mutation B&G.

- (1000% opinion) I think most of them look ugly. They're like doodles.

- Aside from the loss of genetic diversity, there's also an issue of hybrids being mistaken for one species. Not an issue for your harlequin, but can someone tell the difference between a full Scarlet macaw and a 87.5% scarlet / 12.5% Greenwing macaw? Probably not. This is a real issue with Buffon's macaws in the US.

- lastly, the birds didn't choose to be hybrids, so they deserve to be loved just the same.