Based, Uruk's very cringe (basically Sauron's sergeants and middle manager-soldiers who oversee the less willing conscripts and slaves) and Uruk-Hai are made even more evil by Saruman by feeding them human flesh.
Also very cool and not much more fantastical than stuff that Legolas actually does do in the books (e.g. Legolas doesn't sleep, is light enough to walk atop grass or snow). Of the issues with the movie (e.g. cutting out the best parts of Theodan's speech to Saruman even in the extended cut) this is a relatively minor one imho
‘We will have peace,’ said Théoden at last thickly and with an effort. Several of the Riders cried out gladly. Théoden held up his hand. ‘Yes, we will have peace,’ he said, now in a clear voice, ‘we will have peace, when you and all your works have perished – and the works of your dark master to whom you would deliver us. You are a liar, Saruman, and a corrupter of men’s hearts. You hold out your hand to me, and I perceive only a finger of the claw of Mordor. Cruel and cold! Even if your war on me was just – as it was not, for were you ten times as wise you would have no right to rule me and mine for your own profit as you desired – even so, what will you say of your torches in Westfold and the children that lie dead there? And they hewed Háma’s body before the gates of the Hornburg, after he was dead. When you hang from a gibbet at your window for the sport of your own crows, I will have peace with you and Orthanc. So much for the House of Eorl. A lesser son of great sires am I, but I do not need to lick your fingers. Turn elsewhither. But I fear your voice has lost its charm.’
It's such a good speech outright condemning imperialism and the movie BUTCHERS IT
imo the only members of Saruman's army were "in the right" are the Dunlandfolk and Woses who have been tricked into thinking that Saruman will kill the Rohirrim who they (rightfully) hate for taking their land. But both live subsistence lifestyles so i don't think it'll go well for either them if Saruman the clearcutting riverpolluting enthusiast won either
The woses didn't fight for Saruman or Sauron. They have a problematic noble savage thing going on, and Tolkien only ever has them waging guerilla war against the orcs and acting as guides for the Rohirrim on their way south to aid Gondor.