dETH is now over 50% deflated. Much more to go still.
Similarly with BTC. As can be easily observed, bear markets are healthy for Bitcoin dominance.
Although I do not agree with your analysis on BTC, i do agree that ETH will adjust a ton in coming days/weeks.
I still struggle to understand why ETH was so close to breaknig the market cap of bitcoin in the first place when it's got so many problems with its blockchain. And it's not like the smart contracts that ETH has which is apparently its selling point has any real value than for ICOs...
I think that bitcoin will stabilize at somewhere in between $2200-2300. That is probably the most likely thing that will happen. So I expect a 10% adjustment in the coming weeks, until UASF in August. ETH will go back to $100, and bitcoin dominance will go >60% at LEAST.