These are for different discussions. I was using shaping as a test. You get an 'A'. Your fellow Chinese, and their supporters, gets an 'F'.
Since you are old, you lived in your memories of the happy time.
The best of your life was in 1970s up to 1981, when F-117 was first fly.
Your obsoleted theory is memorized and fixed till you served as a cleaning worker in some airforce supplier.
Old man, stealthy technology had been developed alot in past decades and would become better and better.
Oldman like to nag everything all day long they know or don't know.
Look at the evolution of the stealth aircraft,
with the help of the super-computer(China is No.1 many years) , they grew better and better.
Obliviously,
they are so different and they are from different theory and concept.
F-117, old man's best love. F-117 had been shot down and scrapped.
B-2. Old fat boy. Engineer actually don't know how to balance between tech and cost. This bomber is discontinued.
F-22. Short combat radius, overheat, widow maker. This is a bubble and banned to export from bubble-explosion.
F-22 had been discontinued.
T-50, developed by a nation GDP is even smaller than S.Korean.
Stealthy fighter are not for poor.
F-35ABC. Single engine with 2 V-tail, it was sentenced to death from the very beginning.
F-35 may be fully halted by Mr. Trump, a right thing he is going to do.
Money, Supercomputer, Manufacturing, Manpower.
China may the only nation can achieve a real stealthy fighter on this planet.