If you consider the 2021 prediction about crypto bullrun, it's inevitable the other markets such as gold and the entire stock market will suffer. Investors are selling their gold share to cash out more profits in crypto. Look at the gains people had from defi hype alone few months and that was just tip of an iceburg.

Crypto is here to stay and many corporate companies are partnering with crypto companies to promote real world adoption hence money will bleed off gold into crypto.