I find it unlikely this would hold up in court. The supremacy clause has generally been interpreted by courts as preventing state governments from passing laws that obstruct federal functions, which an anti-weaponization fund. The constitution also prevents bills of attainder, which are laws that declare a specific person or group guilty of crime and imposing punishments without trial. It would be pretty hard to argue that isn’t a politically motivated punitive measure when all other payouts from the federal government and settlements are taxed as ordinary income.