Link on how to make generic trash:
Diversity means everyone is the same but they look different:
"Player characters, regardless of race, typically fall into the same ranges of height and weight that humans have in our world."
New character races don’t have the Ability Score Increase trait that Player’s Handbook races have. The new races instead rely on a special character-creation rule that allows a character to increase one ability score by 2 and another score by 1 or to increase three different ability scores by 1.
Generic Humanoids bear the words “Any Alignment,” reminding the DM that such people have vast moral range.
That one word—“typically”—reminds the DM that the alignment is a narrative suggestion; it isn’t an existential absolute.
The problem with modern dnd is that the game actually doesn't tell you how to play. Wotc has been comically negligent with regard to resources for dungeon masters. There are almost no detailed systems for running anything anymore, which puts insane amounts of work and pressure on the DM's shoulders. Now you have no racial or cultural archetypes to flesh out your gameworlds. Instead, you get to "create" everything yourself! So much freedom to do all the shit that the game used to take care of for you! Trying to run a good game is like a full time job these days, and a lot of DMs are noping out. Wotc is playing it off like "progressive change" and more creative freedom, but the truth is they're just giving you no content and acting like they've sold you your own imagination.