Bitcoin's growth began in early 2017 and then it touch 20000. Bitcoin's largest growth is due to the ability to trade with tether dollar. With this growth, a huge growth in ICOs appeared. Nowadays about 30 ICOs are added to the market. This huge volume of ICOs, has taken the power of bitcoin growth. Like weeds next to a tree. Bitcoin will not grow until ICOs exists.
New ICOs will help the whole cryptocurrency bring more money and as the top coin of bitcoin it can help to increase their popularity because in every advertisement of ICOs they use cryptocurrency and that's bitcoin has attached on it being the king of crypto. Don't blame ICOs for the downfall of bitcoin and their are many reasons why this bearish market happens.