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.
No, icos grew in price when the market was hot and the market was hot because investors were putting their money in bitcoin and they decided to invest in all kind of speculative coins not understanding why they were doing, if what you said was right icos should be dominating the market now and growing like we have never seen them before, but the opposite is happening with icos barely reaching their soft caps and trading way below their ico price after they are listed in an exchange.