LZ, all I have seen from you so far is " what if", but nothing about what you are doing for getting a PhD AD. I once have similar state, but now when I look back, my advise is: no more assumption. Just think about what is the most appropriate thing you can do now, such as apply for a MSc programme in the UK top30-50 uni or uni in the US, or even go back to China and find a job. Then think about applying a PhD programme.