I think this is just a price correction. Selling or holding bitcoins is all about their own behavior. I don't think this is a stupid decision. Everyone's psychological price is different. But the future of Bitcoin is not just that.
I think the people who invested there money in bitcoin is not a fool rather there wise enough to double the money they have. The capital you've invest in bitcoin will be triple or multiple if you just learn how to wait. It a matters in holding when the price is low and exchange it when the price is high. Patience is the key in bitcoin there's no need to rush.