Crypto cannot create wealth, only move it around. If too many people become crypto-rich and try to spend it on real-world assets, the assets will just inflate in price. What can happen is that crypto could replace other forms of money. Governments will likely fight this tooth and nail however, because crypto is currently an anti-government technology.
Money is a creation of government, and frankly, the dollar ain’t so bad. If my bank goes under I’m protected by the FDIC. If Coinbase goes under they have the right to use my money to pay their creditors.
It might be not bad. For you.
Perhaps you are an American. Whenever your government prints more dollars, because the rest of the world holds dollar reserves, the value of those reserves go down. So everyone else in the world basically finances the US money printing.
So, if you are an American, the dollar is not bad. Its actually very, very good.
But for the rest of the world (96% of the world population), its pretty bad. It is used as means to transfer their wealth to US.