In the PRC, the development of semiconductor has been taking way too long, for decades already, but they still are unable to catch up with Samsung or TSMC.

Even if the PRC has 100s of J-20 and 052D, what are they going to do? They still will not launch an attack.

However, if the PRC possesses the most advanced semiconductor making capability, that will totally dismantle Taiwan's TSMC money making ability, thereby shaking Taiwan's economy to the ground. It is like defeating your enemy without launching one missile.