So we have to focus on 3th group to make them understand what is the philosophy behind Bitcoin. We have to introduce the bitcoin and try to help them to understand, trust and use Bitcoin. people blongs to the 2nd group will never defend Bitcoin if they saw a price down.
This is a kind of war between conventional money and cryptocurrencies. I blieve that cryptos will never die.
The real reason people are interested in bitcoin now may be a lot simpler, because everybody else is interested. The only reason you buy bitcoin is because you think it is also valued by other people.