Bitcoin will not die even china banned this to there country. We all now that china has a big impact to the community of bitcoin, but it doesn't mean that bitcoin will die if china banned this. Not only the china accept bitcoin, there are a lots of countries who accept bitcoin just like US, Japan, Canada and other countries around the world. There is no reason bitcoin will die even china banned this. Us long us there are people use bitcoin bitcoin will remain.
It happened last year. After the policy of China is applied, bitcoin price is indeed decreased but not to cause death, and after that prices bounce higher. Someday, if other policies from a government that appear to have bad effects on bitcoin, it will be resolved, because bitcoin has many benefits.