The chart and the quoted part is about market caps of Bitcoin and gold. I did not say anything wrong that Bitcoin still has a long way to reach Gold market cap. Having a lower market cap does not mean Bitcoin is worse than gold as Bitcoin is decentralized and verifiable with its network and public ledger.
One that has been around and recognized for thousands of years and one that has only been around for 14 years and is still limited in popularity. So is that comparison fair for bitcoin? Furthermore, low capitalization does not mean that it is inferior to gold, but also shows the great potential of bitcoin and we should not ignore that. But its low capitalization also means it will have greater risk than gold.
There is no benefit in comparing the two, if you are willing to take risks for high returns then choose bitcoin. If you have become too rich and you need a safe and low-volatility asset, gold is the choice.