Centralized exchanges and other entities are a natural part of the Bitcoin ecosystem, so it's not a spam.
Exactly my point. You think centralized exchanges aren't spam; I think they are. These are
subjective opinions. We might agree that ordinals are spam, but there are plenty of others who disagree with us.
If we agree on the basic assumption that Bitcoin is a protocol for sending money and agree that we shouldn't dictate what people do with their money, then it's logical rather than subjective to say that exchanges are not spam, even if you think that they are unnecessary or inefficient. But ordinals are "spam" or rather a misuse of the protocol, and the existing mechanism of preventing wasteful use (fee market) fails because ordinals are profitable.
Well if they were as popular and problematic as ordianls, they should have been treated as a bug too.
So we are quite happy with unproductive nuisance until it affects the fees that a particular group of users have to pay, at which point that particular group of users will seek to ban it? That is not the makings of a decentralized system.
If the cost of solving the problem is larger than the benefits then the solution should be postponed.