Perhaps some Day Traders do well, but day trading is just like gambling, they could just as easily lose money.
You can lose your money by buying and holding too. This whole thing could crash down to nothing tomorrow, and people like you will be left holding the bag, while daytraders like me will have locked in profits multiple times before then.
When the market is down, I make money, when the market is up, I make money...people who buy and hold have nothing but unrealized gains (no matter what the market is doing), which are worth exactly zero.