It's not like Bitcoin has a hardcap in any of our lifetimes. Coin yearly inflation is the metric people should be concerned about. BTC is less than 2%, whereas Ethereum is around 4% today. With PoS, this figure will drop to <2%, so equivalent to Bitcoin. The whole "ETH supply is infinite" is such a lame argument. It's not infinite, because your life isn't infinite. It has a finite yearly inflation, just like Bitcoin.
BTC is less than 2%, whereas Ethereum is around 4% today
Let's not forget Bitcoin's block subsidy (currently 6.25 BTC) is cut in half every 210,000 blocks or about every 4 years. Bitcoin is deflationary—88.44% of all Bitcoin that will ever be produced have already been issued.
We have no idea where Eth is with its production of currency.