What if one of the parties paying the "free market" transaction fees has an endless money printer? Would those fees be a deterrent from implanting something that can be used against the network later? Think long about this from the perspective of the owner of that money printer, since this network would be a threat to that power and monopoly

Mining is hyper competitive... It is kinda understandable that miners want to pump the fee market and are vulnerable to this "free fee market" narrative... They SHOULD probably rather use ocean/datum more to gain a competitive edge...

The idea that the free market or transaction fees alone will prevent spam is unrealistic. You cannot compare ordinary users who just want to transfer money with actors who treat the blockchain as a global billboard. What looks expensive for a simple payment may seem cheap when it buys worldwide, permanent advertising.