But it's the chicken and the egg situation. They're described thusly, because they are evil and are evil because they're described thusly.
Also, once we get rid of alignment, it is easier to add nuance and shades of grey to the situation. Instead of childish "are they good or bad?" we can actually explore why creatures behave how they do, what sort of beliefs and drives they have. And then it is up to the reader to decide what they think of that. I'm sure many real human groups have been described in a manner similar to the description of the orcs, yet the reality behind such generalisations tends to be far more nuanced than simplistic good or evil.
And I think this is why alignment is just bad. Not only is it vague, you have to make all these things to get something that looks even close to alright. And even then, it doesn't really provide you the definition you want because the definitions are so wide open to interpretation. Instead of creating clarity, it causes confusion.
Yeah, but in simplifying something you want to increase clarity, not lessen it. I'd rather a system that works well with simpler ideas as well as complex ones, rather than one that only kind-of works with simple ones and falls apart with any sort of nuance.
Most monsters don't need a lot of nuance at their core, orcs already have more lore and thought but into them than the vast majority of villains in mass media. There is absolutely nothing stopping anyone from changing the default behavior and many settings do and have always done so. The tail is not wagging the dog.
I'm not trying to be rude, I just disagree and don't see any reason to continue because this never goes anywhere.