The Chinese military is pretty competitive, and I wouldn't want to trifle with Russia or Israel either. The technology and manpower are what matter most, both of which it seems China has more of. There's a better world out there than the US of A. Personally, I prefer Europe, but Asia if very nice too. I prefer highly developed countries with high levels of equality (socially and economically). I don't think America is going to collapse any more than I think Russia or China will. If you don't like your country, you should be allowed to move to one you like better. There's always a political crisis, always someone with more and always someone with less. Combat, like prostitution, probably isn't ever going to fully go away, but maybe the AI revolution will reduce the harm and maybe some day world peace can actually be achieved. Peace takes vigilance, Si vis pacem, para bellum.