I support a soft fork to make the max op_return 0 bytes

I also support a soft fork to make a new witness field ("witness2?") where users are welcome to store up to 32 mb of spam per transaction

People who don't want to store this spam can just not run the new software. We learned from segwit that you can ensure backward compatibility by just not sharing the new witness data with people who don't flag their support for it.