I mean, as a billionaire, the idea that you wouldn't at least have just put like say $100 million into Bitcoin a few years ago is crazy. These billionaires are too scared of Bitcoin and by not getting educated on it they are making the biggest financial mistake of their life.
I’m not supporting Billionaire but your logic is assuming that cryptocurrency will continue to rise and no one will sold their holdings. You can use as an example Michael Saylor. If what you said is right then he will have billions of profit now since he invested more than 100$ million dollar yet he is now in huge loss despite he invest few years ago when crypto is rallying. He has the chance to take profit that time when Bitcoin hit the peak price but he didn’t since his holdings will just dump the price to the floor when he exit. This is same scenario on other Billionaires which is why they are pointing out the secured way of investing.
There’s nothing wrong on his opinion that is his belief towards investment. Crypto is really a risky investment so he is not lying. It just hurtful to hear for us since we are Bitcoin investors but we acknowledge the risk of our investment due to volatility.