Unfortunately for money to have store of value efficiency it must ultimately have value which with bitcoin rests again on its currency efficiency.

Miners could only store non dust UTXOs in easily accessible storage and ignore incoming txns that spend them unless the fee is worth the cost to look the UTXOs up. There are so many possibilities.   Your problem is that you are a central planner even tho you dont know it -- you are forcing a particular solution (expensive limited txns) onto the network as a whole.