If the rules don't matter, they won't be bothered if the rules change.
No, that kind of mutual exclusion is often not how things work and isn't how they work here. They absolutely will be valued by this proposal stealing their bitcoins, but their NFT grifting will not ultimately be effected otherwise.
When you say "millions of dollars in funds" are you including the value of the NFTs tied to those sats
No, just the Bitcoin-- but you indirectly make a fine point that it probably ought to be considered too. It's fine that you or I agree that NFT crap isn't appropriate to bitcoin but those harmed aren't beholden to your or my *opinion* and will absolutely seek redress through any and all means for the damage caused to them.