To be very candid I have not seen any concrete reason that prompt this continuous deep of ETHEREUM and other coins in the market. I really need to know the precise reason. The BCH fork affected the market but it should not be to this extent.
hardfork's influence is very small, everything that happens on the market today is due to a decrease in investor interest i the market, so the demand for crypto assets is very small and the volume in the market is getting smaller