This is the opposite of what is happening.
It is because we are worried about it that it is not a problem.
Whenever centralization increases, the twitter storms and articles splash everywhere and miners react.

http://insidebitcoins.com/news/a-move-to-curb-bitcoin-mining-centralization/27042

https://bitcoinmagazine.com/9402/mining-pool-centralization-crisis-levels/

http://bitcoinist.net/the-centralization-of-mining-pools/

http://www.bitcoinx.com/bitcoin-developer-gavin-andresen-weighs-in-on-centralized-mining-and-the-ghash-situation/

I've also addressed this issue in public speaking engagements at conferences, as have many others.  Many people are concerned, very few are "burying their heads", and most of those aren't mining.  If you think people aren't taking *you* seriously, it may be the way you write.  It sounds like concern trolling when you write characterisations like: "faithful, head buriers".  It reads like an attempt to gets folks' dander up when you equate them with this guy: