Greyhawk, for the most part, doesn't give off a vibe like the Mos Eisley cantina
Just off the top of my head, here are some of the demi-human/semi-human races in GH as published:
- Humans
- Elves (high, grey/faerie, valley, grugach, sylvan, acquatic, dark/drow)
- Dwarves (hill, mountain)
- Halflings (harfoot, stout, tallfellow)
- Gnomes (surface, deep/svirfneblin)
- Orcs
- Goblins
- Hobgoblins
- Bugbears
- Xvarts
- Koboblds
- Gnolls
- Ogres (including merrow)
- Ogrillon
- Orogs
- Tasloi
- Lizardfolk
- Sahuagin
- Locathah
- Bullywugs
- Grippli
- Kua-toa (sp?)
- Giants (various sorts)
- Trolls (including scrags)
That's before we get to half- (elves, orcs, ogres at least), cambions, wererats and werewolves, Greyhawk dragons, etc.
Are we really saying that
dragonborn are the straw that will break this camel's back? What's the actual argument?
My personal preference is to not go full on Mos Eisley cantina in my D&D games. It makes the exotic choices decidedly less exotic - and that's kind of boring.
Are you talking about setting design? PC party building? Encounter tables (for inns and taverns in particular?)? Something else?
As far as setting is concerned, I don't see the vast difference between (i) a grippli, a bullywug or even a tasloi and (ii) a dragonborn, as far as fitting in is concerned. This doesn't have much to do with random inn tables, though.
You have to accept when GH returns, it will be with some retcons
Putting these races in isn't even a retcon, because there is no meaningful sense in which they were previously absent.
I never used tasloi in my campaign world prior to acquiring the Monster Manual II, but using them wasn't a
retcon. It was just incorporating new material. This has always been the norm for D&D, especially GH which is a very capacious setting.
it is hard enough to proper roleplay an elf as being something different than a human with pointy ears.
Of the non human humanoids, dwarves are quite easy to play because of their stereotypical traits.
Also a gnome or Halfling and also Halforc is not to hard to roleplay. But a reptile or a halfdemon?
For a dragonborn if played proper you should take some reptilian traits, e.g. warm up in the sun, constantly probing smells with their tongues etc. Their whole emotional background should be totally different than a mammal type.
For any half demon/devil/angel I do not know how to even start here. Maybe play them very very strict to at least one part of their supernatural progenitors homeplane alignment.
Are dragons cold- or warm-blooded?
When it comes to playing a tiefling, wouldn't Hellstrom (Son of Satan) or standard pulp fare be a starting point?
Not to mention that GMs play dragons and demons pretty routinely.
No D&D, and certainly no GH, material that I'm aware of treats non-human peoples as meaningfully alien, so I don't see why we'd suddenly start with dragonborn and tieflings.