Yea in a couple of hours BCH should become around 240% less profitable (I have seen it estimated at one point to be over 300%) essentially BTC miners will earn almost 3x as much as a BCH miner and all miners will most likely abandon the network again probably just for a day though until the EDA kicks in and drops it until blocks are mined at 2m intervals for a couple of days rince and repeat as long as possible until one day people have enough
I am not a btc maximalist but btc will always be king.