The unstable nature of crypto made those investors with attitude think that this is a "get rich quick" scheme. While we can't stop their attitude, it is their loss in the end. As long as people think that they can benefit from something to their finances with such convenience in their entry, they wouldn't help but have that kind of mindset.
It's like saying that having microjob in the internet makes you rich.
it is their loss, but they make others suffer as well because they are acting unpredictably and this makes your calculations fail and you to lose or they convince others and let them lose and they are making it harder for the market to get stable.
yet we can't stop them from doing that unless we use only altcoins with restrictions that help to avoid such behaviors