Another banker attacking bitcoin because they are losing more customers knowing that people are more inclined to invest into something that they can have rate of return significantly huge than the banks do. It may be effective before spreading fear, uncertainty and doubt to bitcoin holders but the investors and traders knew better this time that is why even if they have been successful in making its price drop drastically months ago, they can't do it this time. Jamie Dimon's ulterior motive in spreading FUD to buy bitcoin lower have been exposed that's why this time now, banker's words have no effect to the community.
I am not fully sure what you mean by what you said here, but I take it that you are of the opinion that the "something" that you are referring to has a "rate of return significantly huge than the banks do" is Bitcoin? If so, then you are technically right, but your reasoning is flawed. Bitcoin by itself is
not a replacement for investing in order to grow your wealth. What it sounds like you are suggesting is that people with money in funds should have it in Bitcoin instead. This is a terrible idea because of how volatile Bitcoin is and how its value is not guaranteed to go up. It is simply a risky investment. It is a great idea to have it as part of your diversified portfolio, but all modesty rules should be followed in this regard. Investing in Bitcoin (or anything, really) is not immediately going to make you wealthier.