For me, i don't support the ideology that ICOs are killing Bitcoin. Remember, through ICOs most people has got to know about cryptocurrency. Through the awareness creation made by ICOs, the entire crypto space has gone global. ICOs added a new sense of value to the crypto market.
Yes the developers are promoting their projects all over the world and with the help of them there are many successful seminars all around the world. It is also helping them to start different business with will support the blockchain technology. So I am also in the view that ICOs are not killing the crypto but are supporting this technology.