Full nodes are meaningless to the debate and easily Sybil manufactured.  What is not easily Sybil manipulated?  The longest chain of course.  You can't just change the rules of the game on the fly and pretend miners don't matter when the entire system is based around whatever the longest chain is.  The rules of the game are if you don't like what some miners are doing, you're required to mine harder than them.  If your stance is that a cartel in China has taken control of bitcoin colluding together to control it and no Nash equilibrium exists whatsoever, then you're in the bitcoin has failed camp already in the first place.