The scarcity argument is just factually wrong. Bitcoin is not scarce.
Doing a unit conversion doesn't change anything. The limited supply argument is not implying that you won't be able to own fractional bitcoins, it's arguing that the amount of bitcoin you do own with always be a fixed proportion of the total possible supply (in reality it's proportion will grow as people lose access to their keys) so it won't get devalued by the total possible supply increasing. Remember, value is relative to the supply. Looking at your bitcoin in terms of satoshis doesn't change it's value.
No, I’m not.
The supply of Bitcoin is 21 quadrillion satoshi. You are making an arbitrary distinction that an entire Bitcoin is some meaningful thing. I’m not doing a conversation. A Bitcoin is 100,000,000 satoshi. That is just a literal fact.
People want the supply of Bitcoin to be limited because their economic models depend on that false reality. If there is 21 quadrillion of something, it is not scarce. Wanting something to be scarce doesn’t make it scarce.