ICOs mostly has been funded with Ethereum not Bitcoin, and their crypto sales for fiat could affect Ethereum in some way, but I don't see any way how they could affect Bitcoin.
An ICO advisory firm has released a study showing over 80% of ICO projects were scams. This definition included projects that didnt follow their roadmap or were deemed to be scams by community members.Market has lost over $500 billion of its market cap this year.This also affects the Bitcoin.