Levistus's_Leviathan
5e Freelancer
This particular rift in the D&D community goes back to the Diversity and Dungeons and Dragons announcement in June of 2020, where WotC announced they were going to change D&D to be more inclusive and announced the optional rules for Tasha’s. A small but loud group of grumblers have dedicated over 5 years(!) to threadcrapping any discussion about any new D&D product since then.This temper tantrum has been going on for three years.
There were, of course, discussions about diversity in D&D, problematic aspects of the game, the quality of 5e books/mechanics, and other similar topics before then, but that announcement is when this problem really kicked off.