You do not have the Ethereum, so you do not have to worry about "our" leader. We the miners will determine the course.
Keep in mind
that this is the same attacker who attacked Mt.Gox. He doesn't waste his time trying to convince you. He just does it.
His attack is ongoing and (assuming he succeeds) you won't realize he has won until it is too late for you to sell ETH.
...
His [the "attacker's"] opinion on whether Ethereum will survive his "attack":
The whole of ETH and DAO was a con to start with. Bunch of rich btc invectors wanted a new play toy. Don't worry folks the price will shoot back up because no one cares if there is security risks or a Ponzi that will never be used by ordinary citizens
DAO is a casino that just got robbed buy like all casinos they never fall because of human greed.
That [bolded] part is right.
You'd probably want to read the entire post quoted above, by clicking it to go to the thread whence it came.
How do you know it is the same attacker? If we catch him, the Mt Gox traders will also benefit, it is in their interest.