Can't be assed into watchindg the video, but I will say the Near Harad (Middle Easterners) were presented as morally savages who willingly joined the forces of Sauron, and the Far Harad are even worse... their blackness is a result of being bred with trolls.
All the while they fight the forces of good, who are all based on Anglo Saxon stock.
You even have Tolkien out right admitting that the Dwarfs and their greed, as well as their lack of a homeland, are heavily influenced by the Jews... as well as multiple instances of him saying that the Rohirrim are Anglo-Saxons, that certain languages are directly correlated to Welsh, Old English, etc. ... it's not like Tolkien didn't flat out admit that his perception of the races didn't influence his works.
It doesn't take a rocket scientist to see how that could be seen as racist, and given the era Tolkien was born and raised in... yeah, he most likely was quite racist.
It goes back to what we are talking about Lovecraft... there is nothing wrong with acknowledging that there are some very racist undertones by books written by old white men at the turn of the century. Just don't be obnoxious about pointing it out and realise that's not enough to warrant discarding these masterpiece works.