Why can't some people (not directed at @Minigiant or anyone in particular) simply accept that some DMs just don't want non-old school D&D races (i.e. humans, dwarves, elves, halflings, and maybe gnomes, half-elves, half-orcs...) in the games they run?
I know you didn't direct it to me. But I don't think the thought that some people don't get that some old school DMs don't want non-old school races or classes.
I think it's that some people think that some DMs think the fun of the players don't matter. There is some dismissal of the concept of figuring out why players want to to play certain types of PCs and apathy to adding or fostering popular ideas amongst players in the D&D Community.
For example, I have old 5e PHB classes and races in my Klassivo setting. However I've designed Klassivo to foster all old school archetypes and all race-class-background combinations. Why? Because I want one of a player top 5 PCs to be the one in my campaign. I don't want to force a player to create a PC they don't love... then miss sessions because they don't really care about their PC.
Because to me, outside of a few rare situations a player can't finding a race-class combo they want to feels like a failing on my part. I've created this awesome world and none of it fun to you? It can't constantly happen unless I messed up.