End of ethereum? Certainly not. End of the Ether token? It's likely. ETH is just a token of the Ethereum platform, it seems to me that people still can not distinguish the ethereum platform from the ether token, they are two different things. Currently, the Ether token has an exclusivity function within the Ethereum platform, but this can change, based on a consensus of the miners.
Ripple is a centralized currency. It is the opposite of "Satoshi Nakamoto" idea, the cryptocurrencies have emerged in order to be a decentralized option to conventional (centralized) media. This is the essence, the decentralization.
We can not ignore the growth of the e-sports market, just as we can not ignore the potential of blockchain technology, especially we who operate in the cryptos market. I'm sure blockchain technology will be very well accepted by the e-sports market.
I share the same thinking as you. But we often need to sell our crypto because we still need FIAT to survive. But really, I believe that time will bring us great surprises. HOOOOODL
This is a very complex market, and it requires a lot of knowledge to operate on it, and to make a profit from your work. Start by studying and analyzing the movement of the market, the ICOs. Over time you will gain enough experience to be able to profit from this vast market. Good luck!!