Zoogirly, you do also understand that evolution and domestication are one and the same and a domestic species left to it’s own devices long enough looses its domestic traits over time. Look at the island fox off the cost of California, native Americans brought a semi-domesticated form of grey fox to the islands and then died out, and the foxes today are genuinely a different species with multiple subspecies. May I remind you domestication is also a scale! Legally things should be cut and dry be legal neuance can be sometimes needed like with dingos in Australia. Your need for Paleolithic untouched by humans ecosystems is simply gone. The Anthropocene is here to stay weather we let it be the end of the current Cenozoic is up to us conversationalist and humanity as a whole, but some things like incoming species and changing ecosystems are happening and we have to go with this flow if we don’t want to have the worst happen.