I view blockspace as community not scarcity. It’s gets produced every 10 min and will be produced for ♾️ time. So whenever there is congestion, it incentivizes newer protocol to develop which in-turn removes the congestion from the block.
Also if worlds gets priced in bitcoin, it will eventually price out low economic value transactions on base chain (like $100 transactions at that time) as sats will be more valuable than dollars then.