I think the new ICOs are not hurting the prices of the bitcoin as the value of altcoin rises when bitcoin take the rally. alos on the other side we can say lot of altcoins from fresh ICOs are collecting huge amounts of funds and they are accumulating the price of ether and bitcoin. its obvious that the new ICOs have different different department in their employee structures and they also have to carry out their other works to like listing on exchanges, marketing, legal etc. for all these they have to give payments in BTC or ether and again this money can be returned on the markets.