Every crypto out there is somewhat centralized, trying to perfectly decentralize something is impossible, especially mining since lower electricity= more miners/hashrate. Ethereum is far from being centralized, especially since chinese cannot farm it with the asics they build with 50$ and sell for 2000$+ like in the case of bitcoin, litecoin and many others.
P.S: 99.5% of LTC volume is permanently changing chinese hands, they're artificially trying to keep the prices up to atract more fools. Proof: 99.5% of LTC is traded in CNY currency https://www.cryptocompare.com/coins/ltc/analysis/BTC , lol talk about centralization.