If Dragonborn, one of the most basic, have been playable in one form or another since 2E, are beyond the limits, then, yeah, I'm going to be skeptical of the 20 options left over. Remember it comes back to dragonborn on this post
20 different varieties of playable race probably is coming out to "Here's 7 different types of elves" if dragonborn are too exotic, and if I'm not feeling a regular elf, I don't think Grey Elf, Silver Elf, Gold Elf or Slightly Grubby Elf are going to do it either
Because let's not even kid ourselves, the restrictions are always taking away stuff like Dragonborn (playable in one form or another since 2E thanks to Draconians) or Goliaths (Setting neutral half giants. that's. that's all they are. They're just half giants. They have more mythological history behind them than halflings). If stuff that basic is on the chopping block? Yeah, I'm not joining your game because its not a good sign to see stuff like that immediately cut.
Humans, Elves, Dwarves and Halflings are the "We cannot legally call this ice cream due to having insufficient cream" iced confectionery of the D&D options. Why should I be excited if you only offer me that when I can instead go and join any other game that lets me play anything else?