Here's my hot take. I don't get the hype on subspecies or lookalike species nor how it is a blasphemy to hybridize indistinguishable ones.
We've been through this before, and so this will be all I say on the matter.
Species and subspecies are separate for a reason. Because they have evolved, for hundreds of thousands of years, to develop different characteristics to adapt to the habitats they find themselves in. An African leopard would not survive for long in the Russian winter, and vice versa for example.
If you breed animals of a different species or even subspecies together you are, by definition, completely undoing the evolutionary process that has been undertaken by those species or subspecies. So yes, it is important that we respect this evolutionary process.