Because according to him Bitcoin is a small number of people who have a lot of Bitcoin. They can easily go down on the bitcoin market if they want to.
Example: Cz. Craig wright & Michel Sailor etc.
Looking forward to the well thought out opinion of the experienced in this regard.
Your friend lack exposure to financial system. Is he going to say the same thing if they open Vanguard and Blackrock portfolio to him, will he say he will hate Tesla and Microsoft for these two entities that dominate this stock and shares? I doubt know, so I think his argument is malnutrition without a quality reason for snubbing bitcoin. At least, he should have a concrete and solid reason and not CZ and the rest that are not even among rich list of bitcoin.
Micheal Saylor does own most of the coins under his management, it's people investment and it's his responsibility to look after because that's his job. As for CZ, bitcoin isn't the asset that made him along richest crypto dude, it's bnb and that coin depend on the growth of his exchange, it doesn't have anything to do with bitcoin. Craig Wright is just another lunatic disguiser that is wana be Satoshi but when nobody took him seriously, he is in one corner resting his legs without any influencing power again.