A species can't just do one jop

>this
Also, warrior cultures typically depended on a slave caste, frequently made up of peoples they had captured or conquered.
A Klingon/Orc/Warrior guy culture could be perfectly functional, they'd just tend to put even more prestige on being part of the military, and also everyone would be expected to do some small amount of basic martial training. To go with Star Trek, the average Federation citizen probably doesn't know how to use a phaser unless target practice is their hobby, but the average Klingon, even a Klingon lawyer or scientist, probably got some basic swordsmanship training and knows how to fire a disruptor.
The same could apply to other stereotypes as well. Athenians were famed for being a scholarly people, but they gave the Spartans a good run for their money in battle. There's no reason a culture famed for their skill as artisans couldn't also have a caste of expert horse archers, who wear beautiful but functional armor, or that a stoic culture based around the virtues of tilling the soil couldn't also produce a doughty citizen's militia.

This is a good post.

Tbhird post best post?

Can't speil.

Posts like this is why I still come to this kind of threads

But desu this. Considering your archetypical fantasy setting is some kind of diversity utopia, one specie can simply provide their niche to the others in exchange for services and goods.

Eurasian steppe peoples relied on their herds and trade. Sometimes they also raided settled peoples or each other.

It does when you consider co existence of inferior races
Like hobbits who basically live in the lovely land of farms, spending all day farming because it's humans who are doing everything else they need to stay alive and safe

Race-as-class works when the stranger is an oddity in the human world, the guys with diverse classes. If they're strangers who come from outside to seek a job it's normal that they all belong to a similar niche. Just like all pakis are taxists and shopkeepers here.

What you describe isn't really a thing in most settings but to the extent that it is, yes, it's silly.

It's one reason why Star Wars EU stuff pisses me off. A throw-away line in a movie and suddenly you have an entire race of spies who do nothing but spy, mostly on each other. Trying to dig out dark secrets that they don't even have.

species of warriors does in fact work perfectly in a hegemonic society that enslaves others to do work that they considered beneath them.

the spartans managed to function as a city state for centuries with their native population made up almost entirely out of active soldiers and reserve soldiers because they either imported people with other useful skills and left them to their devices or enslaved people they conquered and put them to the field. a militaristic society like that has been shown to work at least in the short term.

This is a good post

Klingon farmers REAP what they have sown.

This is an interesting topic. Taking an archetype and expanding it into a race/nation/culture isn't very good world building.

When you look at cultures across the world and throughout history, they all had to answer the questions of food production, religion, leadership, warfare and infrastructure. It's not what they excelled at the most that should make them interesting to a world builder, but how they interacted with the world around them and the ways they answered their own shortcomings. Every culture makes a complete picture.

Mayans, vikings, samurai, spartans, Zulu nations- they all answer the same questions, but in completely different ways.