At any time, China could force Bitmain to shut down all its operations, severely impacting Bitcoin's security and long-term sustainability. As such, all possibilities exist for Bitcoin to become focused on its current PoW algorithm. However, the way Bitcoin is leading, is toward the unfortunate focus, because the largest exploitable tanks have the most dominance on the Bitcoin network. This is like the internet where it has started as a decentralized system, but now it is highly concentrated by big corporations like Google, Microsoft and Facebook. Perhaps, indeed, Bitcoin's focus will break some of the barriers that are bothering at the moment, but it seems to me that the Bitcoin hierarchy is much better. In addition, Bitcoin's decentralization protects us against a 51% offensive that may violate all mechanisms and deprive many people around the world.