lmao bro it's not that deep.
spam is subjective noise, consensus is objective code.
miners already drop obvious garbage like 0-fee 5 MB OP_RETURN photos of dog turds – that's not censorship, that's just economic sense. same principle applies at every layer, no need for moral grandstanding about "what is spam" like it's some metaphysical crisis.
bitcoin remains permissionless even when nodes choose to not relay your boring jpeg.