you sir do not understand why eth coin has value and will survive this.   Eth coin still mines at a profit and is the cheapest way to mine BTC via simple sell  your mined eth for btc.

please  sir remember that intel, nvidia ,amd all desktop mining industry wants a good gpu mined coin that allows for discounts on your gaming gear.

The only thing I would concede is any gpu coin that turns a mining profit works for the above major companies so if a gpu coin comes out that is better then eth so be it miners will switch.