finding a new job is really the only option ( other than doing as they are and trying to get concessions. )
riot games was sold for over 400 million dollars solely for league of legends. that money represents ten plus years of software, art, and design contributions from these same employees. it’s their baby, if you will.
if they try to form their own company: what do they have? talent, surely. but, assets? none.
it’s understandable they don’t want to give that up just because the money people are awful.