The answer is simple. All people are holding some ERC20 tokens and all of them is connected in price of ethereum.
So people want ETH to overtake Bitcoin prices. Its all related to money and profit.
I also want ETH to takeover Bitcoin very fast cause i am holding ERC20 tokens too.
But the majority of the token hoders are holding the bitcoin too. The only reason because it has been providing a better manufacture than bitcoin. i would love to see ethereum will be always in the second place after bitcoin consider bitcoin as the store of value and ethereum as the best platform to build our dapps.