I am happy that you figured this out by yourself, and if I am asked, I would say that the 21 million BTC total supply is even too much, the lower it is, the more the law of economics on demand and supply over the price would be enforced. The goal of the 21 million supply was to create scarcity, but till now, the effect has never been felt because you can easily get your Bitcoin today. I wonder where the price would have been if it were difficult to get Bitcoin and everyone held on to their Bitcoin.
That will naturally create more value!
Altcoins can have lower total supplies than Bitcoin and they can be Bitcoin forks or shitcoins. Do lower total supplies make those altcoins more valuable or have higher prices than Bitcoin?
There is nothing like that and it proves that the Demand and Supply effect only works with good projects, and quality cryptocurrencies. In this market, it's Bitcoin and I hope that no newbies will lose money to altcoins with total supplies are lower than Bitcoin, like 20M, 10M or even 5M coins.
An example is Yearn Finance $YFI token.
https://coinmarketcap.com/currencies/yearn-finance/