nostr:npub15dry225aal6s68pdythghk3f754x3vfcnlu3fyggs79dla8dw3zst2yjyg They are under no obligation to "share" -- paying extortion is not sharing revenue.
The fact that advertising supported (some) quality journalism -- and became a cartel in its own right -- doesn't mean news organizations have some divine right to ad revenues.
Subsidize if you wish, but do it honestly, by levying taxes and giving the money to the people you want to support.