They are fighting with it more than other countries. I think they were just tired and decided to get it down, and just closing their market. Banning something is easier than searching the way to change it
But why they are fighting with it, what's wrong?
Too much money goes to the underground economy. A lot of people make money out of it. The problem is also in employment, but it's not much. I don't wanna tell all reason, so this is some of it
http://fortune.com/2017/09/05/china-bitcoin-blockchain-ico-banBy considering all ICOs illegal rather than differentiating ones that trade in unregistered securities from ones that act more like tokens to use certain decentralized apps, China is taking a heavy-handed approach. (In the United States, the SEC appears to be gearing up for a distinction between the two types.)
ICO also does not want to work in the US. For example, Xwin does not work at this territory? Therefore, no, the example with the US is not correct. Yes, China chose a very "heavy-handed" way, first forbidding the ICO, then the stock exchange, but it had a reason for it. There are countries that, on the contrary, treat this with smart direction, like Korea, which does not prohibit, but only seeks new approaches.