I think you've misunderstand the current situation. Yes there were people whom doesn't have any interest in investing in any cryptocurrency at all due to a lot of factors and mostly fear of being scammed. But that doesn't change the fact that there are also people whom are open and accepting Bitcoin and cryptocurrencies. I've seen a lot of new users and people around me whom were curious and interested in what the cryptocurrency is. Therefore, with a huge and overgrowing population together with innovating technology and doubtful minds, there's no possibility that there would be no crypto investors in the future nor Bitcoin's price to be zero.