Given that he publicly discussed his intention to retaliate against Disney, then ordered special legislative sessions with the express purpose of passing the legislation re: RCID, signed the bills when he could have vetoed them, appointed the new board, and bragged about how "he" beat Disney, it seems hard to argue that he isn't culpable.
Probably an oversimplification, but it feels like if someone were to do the following:
- Publicly state you're going to throw a pie at someone for saying something you didn't like
- Order a pie from the local bakery.
- Accept delivery of the pie (even though you could refuse if it's not what you wanted)
- Throw the pie at your target
- Brag that you hit your target with the pie
- Get sued by person hit by pie.
- Claim, "It's not my fault. The bakery made the pie."