It costs China much less to destroy any stealth fighters built by the US and others. a team of Tsinghua University scientists in Beijing, China, has been researching a new type of quantum radar under the leadership of Prof. Zhang Chao of the university’s aerospace engineering school.
The South China Morning Post reports (link below) that the university,110 years old (https://www.tsinghua.edu.cn/en/Schools___Departments.htm), is now looking for partners to make a prototype of the radar.
For more information about how Chinese radars can detect stealth fighers, open this video link: China’s New Radar technology mark the end of the US’ stealth dominance: https://www.youtube.com/watch?v=q_s8E7LWTjY

