1% revenue from spam is what it is now but that could change. Ordinals were very profitable for miners. The fact of the matter is that the spam does incentivize miners because it is more profitable for them. And although you may see it as a small profit, miners still think it’s worth it to mine those transactions. And it’s a free market, so miners should decide for themselves if they want to include it in blocks or not. The fact that they just go directly to large miners for it hurts miner decentralization because the small miners don’t even have a chance to profit from spam. I don’t like spam but it seems like the main argument to filter out spam is a moral one. And I’m more interested in longevity of the Bitcoin network. Why wouldn’t a small miner just join a large mining pool when a flood of spammers decide they want to put their spam on the network?