Sadly, China doesn't have to follow the DMCA, and most of our copyright laws arnt reciprocated in any of theirs.
On top of that IIRC basically Microsoft is telling them they can do whatever the hell they want with Forge because Microsoft owns Minecraft.
But ya, to do anything would both require a fuckton of money for lawyers. Which I don't have. And put the rest of the project at risk, which I won't do. So for now there isn't anything we can do about it.
Just for the official stance:
Netease has NEVER contacted us to get any form of support or endorsement.
Forge does not condone or support Netease in any way.
Forge condemns them for their disregard for open source values.