2. The wrongful Idea to him is general, who dares buy a land for $200 and sell in few years for $210 got so that it won't look scammy?
When they resell land, real estate, shares and securities - then, according to them, it is not a scam. As soon as the same actions are performed with bitcoin, then they start shouting that it is a pyramid, a ponzi scheme and a scam. 
Surprising, right?There are too many nonsense online out there, poisoning the mind of other people towards Bitcoin and the crazy part is, some people are on this forum right now and they still don't understand a thing about Bitcoin, they are surely here for a reason, I guess that is the gold rush part only, they lack the reasons why Bitcoin is highly valuable today.
There has always been a lot of this nonsense around. Not only online, but also in everyday life. And it has always been a good quality to be able to distinguish nonsense from really worthwhile things. Now this is not a problem, when a really worthwhile thing already costs more than $100k, which should be a weighty argument against skeptics.