[snip]
Nice example by the way.

Not everyone but yes some people think like that and those thing are define people how much maturity we earn in our life. This is not first time crypto currency gone down. It's a part of trading. We already past much horrible time than this one and we also did rise up from that (if we see crypto currency's past). And undoubtedly this time also we will recover as before.
That is right, investing in a volatile cryptocurrency, people should expect this kind of dumps.
As you said, we've been through a lot much worst than this and that particularly is in 2017. The price fell, yes but always remember that Bitcoin is not a safe haven investment; things like this will surely happen and people should be wary of it.