Even if we weren't, see https://stacker.news/items/1327860/r/Undisciplined?commentId=1328328

Yes, they forget that time itself is absolutely scarce. The fact that we're all dying guarantees constant scarcity. 

Aeneas

Even if we lived forever, there would still be scarcity in what we can do with each moment

BlokchainB

You're right, but that's such a preposterous utopian fantasy. 

Scarcity is a fundamental of reality because human wants are unbounded.