Absolutely not. At least not for the next few years
Cryptos are a revolution.
I'm failing to see a reason why there would only be one universal crypto when they all do different things. I think it will be like any other industry where the big players will be more attractive to the majority of the market, but there will always be niche markets like with anything else.
It's easy to get lost in details on these boards and fail to see the big picture. Will people get burnt? Sure. Could I be one of them? Yeh maybe i make stupid decisions sometimes, but as a whole I think this industry if you want to call it that will continue to grow. We still haven't seen mass scale adoption on any coin. At best people know what Bitcoin is but they don't know what's going on here and certainly aren't planning on using it. Realistically the majority of them won't pay attention to it until they're told to and it will still take some time before they trust it. Which means all the big fiat players will either lobby against it or come aboard. Either way I think they'll just be validating it.
Then again what do I know. I'm a newb