I think they might be a little desperate for new employees since I haven’t worked in about ten years and both Palantir and Anduril contacted me with cold calls in past year.

I can't speak to Palantir, but Anduril is growing rapidly. Headcount has been ~doubling every year.

In a country with many huge companies selling oil, cigarettes, weapons, etc. there is no shortage of people willing to deal in morally questionable trades for money. I might even boldly suggest that Palantir is arguably far from the worst.