I dunno if that's true.
Remember lineage? And how it went back to being race?
Pathfinder 2E is kind of the "mine canary" here. People who like D&D-ish games but are more "right-on" are often PF2 fans/boosters, because, frankly, PF2 has done a better job with diversity/modernity etc. Part of this is having a specific setting - Golarion - which they were able to update timeline-wise to get rid of stuff they didn't like. Part of it is that their core team is I believe more diverse and certainly has better instincts than WotC on this kind of thing. I don't think WotC are less committed to be clear, but they're not doing as well (even with this playtest they misstepped on half-races and by assigning languages to jobs - even I, only mildly "woke" (due to my 44-year-old decrepitude) when "UH OH" when I saw the languages assigned to jobs thing).
Anyway, whatever, point is they're basically a couple of years ahead, minimum, of where WotC is (at least for the last few years).
And they still have Barbarians and Monks (even still called that). I also don't see much discussion on left-RPG-Twitter of Barbarian anymore. A few years ago people were like "Omg so problematic!". Now it seems almost like it's been accepted as a class-name not connected to real-world stuff (not sure that's quite right...). I dunno if that'll stick but...
Worth noting PF2 Monks aren't forced-Shaolin Monks like 5E though - that's one option among many due to the way PF2 uses Feats (which ends up being more like Warlock Eldritch Invocations than D&D's Feats).