So far the only argument that worked with the 'educated' was to tell them there were two kinds of people, those who support Bitcoin, and those who don't. Then, of course, they had to ask what the difference was. I replied the only difference I could tell was if the person had spent 100 hours learning about Bitcoin or not. And since they are 'educated' they cannot stand the thought that maybe they are too stupid to know about something. Suddenly they spent 100 hours learning about Bitcoin and suddenly they were buying it.
This. Everyone has an opinion regardless of how much work they've put in.
"It's easier to fool someone than to convince them they've been fooled" -- Mark Twain
It's not always easy to get them to see they formed those opinions based on very little information. But once you break that wall they start to question things. Nobody likes to realize they've believed lies.