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.
I think that it has become clear to most people that the market is being killed by Scam ICOs and a large number of deliberately unsuccessful projects that have appeared just on the wave of ICO popularity, they are pulling the investors money, and as a result, the developers are throwing them, and the price of tokens begins to strive to zero.