It's not neutral. It's pointedly a monetary protocol.
Discussion
Read again,...
If Bitcoin’s truly neutral, then the market decides.
Use it how you want. Pay the fee. That is Bitcoin.
I heard you the first time
"The market decides" is not relevant in this discussion. The decision to increase block sizes was not a market decision - it was renegade devs' decision. The same is happening here.
If you insist on framing it as a market decision, then the market has definitely chosen AGAINST arbitrary data (spam) on blockchains, since that was the selling point of all the various shitcoins - but they went to zero, and bitcoin went up. The market chose money being money, not spam.