People have been repeating "Si vis pacem, para bellum" for thousands of years for a reason.
Semiconductors and aerospace are important to war efforts, and having domestic manufacturing capability is a big deal if you have serious, wealthy, technically advanced adversaries.
Reality is complicated and many-faceted, and there are a number of reasons to keep Intel alive as far as the govt goes: war, staving off brain-drain, keeping a lot of jobs, etc.
It’s hardly naive to assume that, since there has always been conflict, that conflict will continue for the foreseeable future.
Take that from someone who lost a large chunk of his family currently in an African - shithole as the US president aptly put it- country. I'm on HN because this is the most peaceful time in recent memory. Do me the favour, at the very least, to put a handle on your dillusions grandeur. In our connected world diplomacy should be the only way to resolve national conflicts.