Sometimes these people don't do proper research before venturing to invest in Crypto, sometimes they see just see some site that tells you invest in Crypto and make 100% profit, they just jump in without asking the right questions and talking to the right people. It is greed to think that way at this time. Before investing in any business you mast carry out you study to know if your money will be safe or not.
We can't change their mindset as to whether we like it or not, the truth will prevail and these greedy people will become hungry for money and get fooled easily by this scam trick.
However, a person who will consider their mistake as a tool to become right and become successful will somehow change and take action to correct these things. But for those who keep arguing and still believing themselves and their decision was right, they will just fail and no way they went successful.