Don't think this is fair.
Tolkien's stuff is not really about race. It's not really what he concerns himself with or thought about when writing the stories. It's very much a good vs evil story, but in a spiritual sense, not any kind of reflection of our world's geopolitical reality. Orcs aren't an inferior subset of humanity. They're an evil perversion of humanity, all of humanity. Even then, that evil is not necessarily inherent to, like, their biology. It's a product of the greater forces that bind their will. It's explicitly stated that they follow Sauron/Morgoth out of fear. Orcs are essentially born under the umbrella of an evil cult from which they can't escape. They also *aren't* just capable of hate. There's a conversation between two orcs in the books that distinctly sounds like two lower-class citizens who are disgruntled and unsatisfied with the orc, wishing for it to be over.
There are some unfortunate implications that can be drawn from the physical characteristics all orcs share, but if you read his works as a whole and his letters, Tolkien was pretty on-record as being anti-racist. He also more than once revised his work, esp. concerning the orcs, to avoid being associated with and used by racists.
as to miyazaki, iunno. made some good movies. some of them are even my favorite movies. Sure are a lot of stories about him that make him seem like someone you wouldn't want to have any kind of personal interactions with. Also seems to like confidently talking about stuff that's outside his wheelhouse without giving much thought.
“If someone is the enemy, it’s okay to kill endless numbers of them. Lord of the Rings is like that. If it’s the enemy, there’s killing without separation between civilians and soldiers. That falls within collateral damage.”
like... there aren't orc civilians in LOTR. If they exist, they aren't shown. It's explicitly always orc armies and smaller fighting forces. This just kind of makes it seem like he didn't watch the movies!