No it is not. The simple reason why ethereum fell in price. Basically many people bought ethereum and spent it on ICO tokens, which caused ethereum price to skyrocket and get the second place from litecoin aka "silver to bitcoins gold" and now still standing at second place even after the price went down so much and everyone is fearing for the drops.
However, when the bear market hit, those ICO people you sent ethereum to started to sell their ethereums, they started to get rid of the funds they have and get cash instead and use that to improve their coins while at the same time we are in a bear market. Which means there is no chance in hell ethereum is heading for a collapse, its just bad timing.