Can you please en-light me what technology Europe have which is equivalent or superior to Chinese DF-21 missiles, Kinetic Kill Vehicle for Satellite killer, Hypersonic Missile Vehicle, Chinese Fastest computer etc. and please don't say that these all are useless
You are seriously confused between the technology base and the devices that came from said base.
For example, if you build a car with a V8 while I have only a V6, that does not mean you have a superior technological base than I do. We both share the same base, which is the internal combustion engine concept that utilizes pistons moving in linear motion inside a cylinder. You just have two more cylinders than I do. On the other hand, if I turn out a turbine, which is an alternate method of sustaining and controlling explosions, but you do not, then we can debate on which device is superior or applicable for which application.
There are two kinds of entrepreneurship: catch-up and frontier.
All the weapons systems that you trumpeted as somehow a superior technological base for China are actually devices that came from catch-up entrepreneurship and production.
- Missile guidance was frontier entrepreneurship from the West but the same concept applied to the DF-21 is catch-up entrepreneurship from China.
- High speed rail was frontier thinking from the West but increasing the speed is catch-up thinking from China. Now, if China came up with a tiny level of anti-gravity and applied it to China's own high speed rail system, then we can say that China have a superior technological base for her high speed rail system than the West.
- Supercomputer and associated computational capabilities were frontier technology from the West but if China added a few more processors and improved the computational processes it is catch-up technology from China.
Your argument indicate you have no or little personal experience in technology and manufacturing, let alone the military applications of them. The reality is that there is no such animal as 'military technology'. The military institution is essentially an extremely conservative one, no matter the country. It has to be because when this institution go into action, people die and things are destroyed. Any device that the military uses must be thoroughly tested, preferably in the civilian environment before the technology and device are adapted for military usage.