I agree that miners are under no obligation to mint ordinals.
I agree that using #Bitcoin as an art gallery constitutes "spam".
I disagree that pool operators should be setting policy on behalf of miners.
I strongly disagree with backwards breaking changes to standard network protocol, like OP_RETURN, because there are valid usecases for that field. Whirlpool, decentralized identity proofs, and others yet concieved.
#Ordinals are going to run out of customers like every shitcoin. We don't need to break #Bitcoin nor compromise decentralization to help them fail.