Who are the Tolkien brutes?

There's no recognized group or term called "Tolkien brutes" within Tolkien's works or fandom. It's possible this is a misunderstanding or a term used in a specific context you're referring to.

To help me understand your question, could you provide more information? For example:

* Where did you hear this term? Was it in a book, movie, online forum, or elsewhere?

* What context was it used in? Were they described as characters, a group, or something else?

* What kind of "brutes" are you thinking of? Were they animal-like, monstrous, or something else?

Once I have more information, I can hopefully understand what you're asking about and provide a helpful answer.