Here is how we stop it.
1. Open source ASIC chip.
2. Open source low cost miner design.
3. Low cost miners in every hand.
4. P2Pool with those miners.
well - for example all you have to do is buy Bitfury's chip design and open-source it.
I have already done #2, and plenty of people did #3. #4 will happen by itself.
Yup.
And what happened?
You broke even maybe?
How many Bitfury chips can you buy today?
Millions bought them and now we had decentralized mining right? 100's did that is great but that is not millions, not enough to do much more than keep some hobbyists happy.
There are things you can change. There are things you can't change. I don't see how you break a monopoly that is coming at all.
Expecting these companies to be like you vs3 in anyway is not the hope you should be waiting for. I don't see anyone going to put the time and the effort in to make an ASIC and then get miners in the hands of millions which is the only way you beat the big players. It is over unless that happens somehow. I submit that the end is now and the monopoly on mining is already here and won't be challenged.