You are making wrong comparison here and when a coin is running on PoS network how come we except decentralised concept from it? The validator with more financial power has more control over the network while in bitcoin it's not the case as miners run computation to find the target as nobody has control over network so can we compare them both?
One is fair distribution while the other is just giving more power to someone with more finances and bitcoin runs on complete decentralised concept while ETH has big whales who have control and Vitalik would never loose control of his network.
On the other hand things like bcash are copies of bitcoin that have nothing to do with bitcoin. They just copied the code and the chain (history) to create a new coin.
There are many coins which are just copies of it like many people confuse wBTC also with BTC which is just another shit token on ETH blockchain and have nothing to do with bitcoin at all but people without even checking just make assumptions they are same but it's not the case.