After a lot of back and forth on this one, I will be voting “For” this proposal.
Realistically whether Arbitrum gets involved or not, some version of rollups will be deployed on non-Ethereum chains. So while I strongly value the Ethereum relationship, Arbitrum will be shooting itself in the foot if it fails to expand in this way. I also am hopefully this type of collaboration can lead to some really powerful technical advancements in the future.
I’ll caution that this has the huge potential to take time away from Ethereum specific development. I think it is important that these outside projects don’t materially take away from what’s being built on Ethereum as it still is the #1 smart contract network.