Chinese miners can decide tomorrow to change code to produce more than 21 million coins if they think their profit is not enough.
Wrong. People already attempted this at the first Bitcoin halving by trying to fork to a continuous 50 block reward chain and it was a miserable failure. Even if you temporarily rented all hash power on earth to try and get temporary consensus, the economic majority would stay on the normal chain and miners would be forced to switch back and mine on it after their coup fails. Miners are forced to go where the economic majority is, not vice versa.
Same reason miners are not mining Borgcoin for profit right now; there is no economic majority there:
Borgcoin has 500,000,000 coins to be minted. 500 million being based on the mass ton of the borg trans warp ship with a maximum rated speed of 29.968 warp factor with advanced trans warp drive. The fastest trans warp drive ship ever to exist. Join the collective now.
