Actually I like to counter that-everyone looks at bitcoin the wrong way. The miner are not the dencentrzled part. It the nodes-remember UASF? Nodes are what matter in bitcoin and fake nodes are very easily seen. Also since bitcoin has no lead dev the development of bitcoin is the most decentralized.
And for the miner part with the introduction of halong mining Bitmain dominance in bitcoin mining has dropped. A much need computer has arrive to asic and samsung is helping halong mining in the quest for an alt mining company. With the bad press Bitmain has-less people buy for them. Anyway that is my counter :)