If bitcoin will fail as the foundation of cryptocurrencies surely most of the alts in the market will follow its path,i dont think these altcoins are worthy because most of these alts doeant have any product/services to offer,surely they need to be removed from the market so our market wont have any shitcoins or worthless coin and besides the cryptocurrency's market volatile that is why you need to know how the market flows so you can adjust in any situation you are in.