Maybe bettas are considered invasive. I read an article that said they are endangered. However, a different article claims they can be invasive. Frankly that’s not my metric. Both they and koi are among the most beautiful fish on earth. I’m very glad for Asia, as we’d have neither breed without it.
Here’s some non-invasive koi art. It looks good on the walls.
Koi are still carp, same as goldfish. Carp are notably gross and have enormous impacts on their environments.
Hyenas are dogs, and some dogs are also very clean and productive. But a hyena in the US wild would certainly be called out as “A disgusting, dangerous invasive species that comes from Africa”. A comparison to a Golden Retriever wouldn’t be drawn, but surely people can understand what I mean.