It is clear that ethereum has got competitors but that doesn't mean they are going to kill it. Bitcoin has got over 2000 competitors but still the leading cryptocurrency in the world. I really believe in ethereum and I support vitalik's ideas.
You are right. I think that the price of Ethereum did not go down, because of the competitors, but because of the market conditions. So far no other project is close to Ethereum and I have full faith in it.