Is it really impossible for you to believe that someone could see value and potential in bitcoin while believing that the current price is not a an accurate representation of it's value?
Maybe they are skeptical of any community that dismisses well-measured criticism with cries of "FUD". Maybe they see bitcoin as cryptocurrency v1.0 but it would be foolish to think that the first implementation of such a technology was the best possible implementation. Maybe they are skeptical of the way many bitcoin-holders seem to prioritize their personal net worth increasing over bitcoin's use as a currency. Maybe they think the future lies in a more extensible platform like Ethereum.
Bitcoin and the blockchain are very interesting technologies full of potential but I don't understand why their proponents seem to take everything so personally.