Man in the Funny Hat
Hero
The DM creates the game world, the players agree to play in that world. If the game world has restrictions on the type of PC's (for WHATEVER reasons) then accepting those restrictions is included in agreeing to play. If the player wants unrestricted freedom in creating their PC then perhaps they should be so ridiculously polite as to simply ASK, and if the answer is no, not throw a major wobbler. If the DM has so many restrictions on creating PC's that the players feel needlessly stifled, they should make their perspective known to the DM and realize that they have the freedom to choose NOT to join the game.
This isn't complicated.
This isn't complicated.