Don't fall into the trap of thinking people disagree with you because they are ignorant. That never works, usually because it's wrong. Consider the possibility

Don't fall into the trap of thinking people disagree with you because they are ignorant. That never works, usually because it's wrong. Consider the possibility that most people who are into cryptocurrency are as aware of the many down sides as they would need to be, but have come to a different conclusion than you about them.