One of your major choices is how much you want to specialise, vs be a general service. I expect you're in the phase of discovering that. Now, with the disclaimer I'm just a random guy who knows not-much about business - and is just a small hobbyist electronics guy - it seems clear that your stiffest headwinds are at General Service. I would be leery of how much success you'd have there, because general PCB service is something the world has A LOT MORE of than it had 10 years ago, and the economics are on balance unfavourable to you.

But to (very slightly!) paraphase you, you think it's important to focus on drones/defense and other nationalist areas where the future is canted toward you, and while that is not an area I'd enjoy working in myself (no personal judgement on you, but I'd rather spend my life doing things other than conflict and war), that is clearly what you know to be your first-rank business chance.