Can Bitcoin be Co opted ?
I say it can. But it would take a coordinated effort by Government , Banks and other Industries to do it
And as Bitcoins and the other alternative currencies are used and owned by more people all over the world , the lesser would their influence
China already has a lot of influence in Bitcoin because of the large amount of bitcoin mines there
https://bitcoinworldwide.com/mining/china/
And a lot of Chinese are investing in Bitcoin
https://www.nytimes.com/2016/07/03/business/dealbook/bitcoin-china.html
But other countries have also bought into Bitcoin.
Its so popular in Korea that it’s a bit more expensive there
https://steemit.com/bitcoin/@kanghamin/why-korean-buy-expensive-bitcoin
And Japanese love it also
https://news.bitcoin.com/the-japanese-using-bitcoin-expected/