Thanks, you've given me place to start researching, because there are a few things that are not clear to me. Like when you mention "non monetary transactions" in a block. What does that exactly entail? Because from what I understood in your post, these transactions are keeping the UTXO spammers at bay by outbidding them. I know governments have access to the money printer, so I understand the theoretical point as to why this wouldn't stop them.
Also, some argue that spam is subjective, I personally don't think that's entirely the case, I think there are things that are clearly spam to the majority of people. But anyways, at least to a knots supporter, would your statement read to them as "spam is keeping UTXO spam at bay"?