You're a newbie and clearly don't understand the point of mining. Hint: it's not creation of new coins, that's just a nice little side effect. The point of mining is synchronizing the network in such way that cheating is impossible, because it's unsustainable. It really doesn't matter how many entities are mining, they have no choice but to follow the rules of the network and don't try to cheat with forks. In fact, one CPU - one vote is less secure, because its easy to create botnets and attack the network for free with stolen hashpower.