Even if it is a loss, as long as you don't sell your coins, it is not a loss, because the price will rebound. But if you sell your coins because of a panic, that's a real loss. It cannot be said that everyone loses money, but most people definitely lose money.
The premise should be the regular mainstream currency. Some altcoins and projects cant wait for a rebound, and the project party just ran away, so you must be cautious when playing altcoins.