Fully agree with you on all points, but I fear this requires serious governmental interventions - simply due to the massive amounts of money involved. The "free market" obviously has failed, with - as you mentioned - massive dangers to national security.
Unfortunately, I also can't see any government willing to put the money on the table to establish a third party from scratch. All that seems to be available is handouts for TSMC to construct a fab in Arizona, and even that was widely criticized.
> I fear this requires serious governmental interventions - simply due to the massive amounts of money involved
Probably. And I suspect it will happen. Chips are crucial, and the governments know it.
Mind you, Apple also has large sums of money available (I suspect more than they know what to do with). So some of that going towards propping up Intel may be no bad thing.
> Unfortunately, I also can't see any government willing to put the money on the table to establish a third party from scratch.
I believe the Chinese government is in the process of doing this with SMIC. It seems likely that they will be competitive before too long.