Back in 2010 the mining was decentralized. people with just a cpu were mining bitcoin
Now its only people with big resources.
People with money, not average income people, own/control the printing presses.
Though they can't (easily) change the speed of printing; they're still doing the printing.
Alternatives like quark; at least right now make it possible for the cpu to be mining at a much higher advantage than expensive centralized operations.
Isn't it preferable for the people to control the mining Aren't we at risk? What if China just tookover 70% mining, decided which transaction were published and what changes to bitcoin they wanted